Table of Contents
Fairy Chess – HackerRank Solution Java , Python 3, Python 2 , C , C++, Best and Optimal Solutions , All you need.
Solutions of Algorithms Data Structures Hard HackerRank:
Here are all the Solutions of Hard , Advanced , Expert Algorithms of Data Structure of Hacker Rank , Leave a comment for similar posts
C++ Fairy Chess HackerRank Solution
#include <iostream>
#include <cstring>
using namespace std;
#define long long long
const int maxn = 210;
const int mod = 1000000007;
int n, m, s;
char map[maxn][maxn];
long ans[maxn][maxn];
long sum[maxn][2*maxn];
void init()
{
cin>>n>>m>>s;
for(int i=0; i<n; ++i)
cin>>map[i];
}
long getsum(int x, int y)
{
if(x<0) {
y += x;
x = 0;
}
if(x>=n) {
y = y - x + n - 1;
x = n - 1;
}
if(y<0)
return 0;
return sum[x][y];
}
void calc_sum()
{
for(int j=0; j<2*n; ++j)
for(int i=0; i<n; ++i)
{
if(j>=n)
sum[i][j] = 0;
else
sum[i][j] = ans[i][j];
sum[i][j] = (sum[i][j] + getsum(i-1, j-1) + getsum(i+1, j-1) - getsum(i, j-2) + mod) % mod;
}
}
void solve() {
memset(ans, 0, sizeof(ans));
for(int i=0; i<n; ++i)
for(int j=0; j<n; ++j)
if(map[i][j] == 'L')
ans[i][j] = 1;
for(int k=1; k<=m; ++k) {
calc_sum();
for(int i=0; i<n; ++i)
for(int j=0; j<n; ++j)
if(map[i][j] == 'P')
ans[i][j] = 0;
else
{
ans[i][j] = (getsum(i, j+s) - getsum(i-s-1, j-1) - getsum(i+s+1, j-1) + getsum(i, j-s-2) + mod + mod)%mod;
ans[i][j] = (ans[i][j] + getsum(i, j+s-1) - getsum(i-s, j-1) - getsum(i+s, j-1) + getsum(i, j-s-1) + mod + mod)%mod;
}
}
long res = 0;
for(int i=0; i<n; ++i)
for(int j=0; j<n; ++j)
res = (res + ans[i][j])%mod;
cout<<res<<endl;
}
int main() {
int t;
cin>>t;
while(t--)
{
init();
solve();
}
}
Java Fairy Chess HackerRank Solution
import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.util.StringTokenizer;
class FairyChessSolver {
static final class Operation {
private static final int FINITE_FIELD_MODULO = 1000000007;
public static int add(int a, int b) {
int r = a + b;
return r - (((FINITE_FIELD_MODULO - r - 1) >> 31) & FINITE_FIELD_MODULO);
}
public static int sub(int a, int b) {
int r = a - b;
return r + (FINITE_FIELD_MODULO & (r >> 31));
}
}
private static char PAWN_SYMBOL = 'P';
private static char LEAPER_SYMBOL = 'L';
private static int EMPTY = 0;
private static int PAWN = 1;
private int n, m, s;
private int leaperRow, leaperCol;
private int[][] board;
public FairyChessSolver(int boardSize, int moves, int s, String[] board) {
this.n = boardSize;
this.board = new int[this.n][this.n];
this.m = moves;
this.s = s;
for (int i = 0; i < boardSize; i++) {
String row = board[i];
int[] thisRow = this.board[i];
for (int j = 0; j < boardSize; j++) {
if (row.charAt(j) == PAWN_SYMBOL) {
thisRow[j] = PAWN;
}
else if (row.charAt(j) == LEAPER_SYMBOL) {
leaperRow = i;
leaperCol = j;
}
}
}
}
public void solve() {
int[][] ways = new int[n][n];
ways[leaperRow][leaperCol] = 1;
int[][] cWays = new int[n][n];
int[][] s1 = new int[n+s][n+s];
int[][] s2 = new int[n+s][n+s];
for (int move = 0; move < m; move++) {
// - evaluate sums of diagonal stripes of length s / s-1
// -- i == 0
for (int j = s; j < n + s; j++) {
s1[0][j] = ways[0][j-s];
}
// -- i -> [1, s]
for (int i = 1; i <= s; i++) {
int[] s1i = s1[i];
int[] s1i1 = s1[i-1];
if (i < n) {
int[] wi = ways[i];
for (int j = 0; j < s; j++) {
s1i[j] = s1i1[j+1];
}
for (int j = s, l = n + s - 1; j < l; j++) {
s1i[j] = Operation.add(s1i1[j+1], wi[j-s]);
}
s1i[n+s-1] = wi[n-1];
}
else {
for (int j = 0, l = n + s - 1; j < l; j++) {
s1i[j] = s1i1[j+1];
}
}
}
// -- i -> (s, n+s)
for (int i = s + 1; i < n + s; i++) {
int[] s1i = s1[i];
int[] s1i1 = s1[i-1];
int[] wis1 = ways[i-s-1];
if (i < n) {
int[] wi = ways[i];
for (int j = 0; j < s; j++) {
if (j+1 < n) {
s1i[j] = Operation.sub(s1i1[j+1], wis1[j+1]);
}
else {
s1i[j] = s1i1[j+1];
}
}
for (int j = s, l = n + s - 1; j < l; j++) {
if (j+1 < n) {
s1i[j] = Operation.sub(Operation.add(s1i1[j+1], wi[j-s]), wis1[j+1]);
}
else {
s1i[j] = Operation.add(s1i1[j+1], wi[j-s]);
}
}
s1i[n+s-1] = wi[n-1];
}
else {
for (int j = 0, l = n - 1; j < l; j++) {
s1i[j] = Operation.sub(s1i1[j+1], wis1[j+1]);
}
for (int j = n - 1, l = n + s - 1; j < l; j++) {
s1i[j] = s1i1[j+1];
}
}
}
// -- i == 0
for (int j = 0; j < n; j++) {
s2[0][j] = ways[0][j];
}
// -- i -> [1, s)
for (int i = 1; i < s; i++) {
int[] s2i = s2[i];
int[] s2i1 = s2[i-1];
if (i < n) {
int[] wi = ways[i];
s2i[0] = wi[0];
for (int j = 1; j < n; j++) {
s2i[j] = Operation.add(s2i1[j-1], wi[j]);
}
for (int j = n, l = n + s; j < l; j++) {
s2i[j] = s2i1[j-1];
}
}
else {
for (int j = 1, l = n + s; j < l; j++) {
s2i[j] = s2i1[j-1];
}
}
}
// -- i -> [s, n+s)
for (int i = s; i < n + s; i++) {
int[] s2i = s2[i];
int[] s2i1 = s2[i-1];
int[] wis = ways[i-s];
if (i < n) {
int[] wi = ways[i];
s2i[0] = wi[0];
// --- j -> [1, s)
for (int j = 1; j < s; j++) {
if (j < n) {
s2[i][j] = Operation.add(s2i1[j-1], wi[j]);
}
else {
s2i[j] = s2i1[j-1];
}
}
// --- j -> [s, s+n)
for (int j = s, l = n + s; j < l; j++) {
if (j < n) {
s2i[j] = Operation.sub(Operation.add(s2i1[j-1], wi[j]), wis[j-s]);
}
else {
s2i[j] = Operation.sub(s2i1[j-1], wis[j-s]);
}
}
}
else {
// --- j -> [1, s)
for (int j = 1; j < s; j++) {
s2i[j] = s2i1[j-1];
}
// --- j -> [s, s+n)
for (int j = s, l = n + s; j < l; j++) {
s2i[j] = Operation.sub(s2i1[j-1], wis[j-s]);
}
}
}
// - evaluate updated "ways to move" matrix
// -- evaluate after-move value of cell (0, 0)
int value = 0;
for (int i = 0; i <= Math.min(s, n-1); i++) {
int[] wi = ways[i];
for (int j = 0, l = Math.min(s-i, n-1); j <= l; j++) {
value = Operation.add(value, wi[j]);
}
}
cWays[0][0] = value;
for (int i = 0; i < n; i++) {
if (i > 0) {
value = cWays[i-1][0];
// - add: s1(i+s, s)
value = Operation.add(value, s1[i+s][s]);
// - sub: s2(i-1, s), ways(i-s-1, 0)
if (i > s) {
value = Operation.sub(Operation.sub(value, s2[i-1][s]), ways[i-s-1][0]);
}
else {
value = Operation.sub(value, s2[i-1][s]);
}
// - set value
cWays[i][0] = value;
// - i > 0
int[] cwi = cWays[i];
int[] s1is = s1[i+s];
int[] s1i = s1[i];
int[] s2i1 = s2[i-1];
int[] s2is = s2[i+s];
for (int j = 1; j < n; j++) {
value = cwi[j-1];
// - add: s1(i+s, j+s), s2(i-1, j+s-1)
value = Operation.add(Operation.add(value, s1is[j+s]), s2i1[j+s-1]);
// - sub: s1(i, j-1), s2(i+s, j-1)
value = Operation.sub(Operation.sub(value, s1i[j-1]), s2is[j-1]);
// - set value
cwi[j] = value;
}
}
else {
// - i == 0
for (int j = 1; j < n; j++) {
value = cWays[0][j-1];
// - add: s1(i+s, j+s)
value = Operation.add(value, s1[s][j+s]);
// - sub: s1(i, j-1), s2(i+s, j-1)
value = Operation.sub(Operation.sub(value, s1[0][j-1]), s2[s][j-1]);
// - set value
cWays[0][j] = value;
}
}
}
// - clear occupied cells
for (int i = 0; i < n; i++) {
int[] bi = board[i];
for (int j = 0; j < n; j++) {
if (bi[j] != EMPTY) {
cWays[i][j] = 0;
}
}
}
int[][] tmp = ways;
ways = cWays;
cWays = tmp;
}
int result = 0;
for (int i = 0; i < n; i++) {
int[] wi = ways[i];
for (int j = 0; j < n; j++) {
result = Operation.add(result, wi[j]);
}
}
System.out.println(result);
}
}
public class Solution {
static public void main(String[] args) {
try {
BufferedReader br = new BufferedReader(new InputStreamReader(System.in), 64 << 10);
int testsNumber = Integer.parseInt(br.readLine().trim());
for (int test = 0; test < testsNumber; test++) {
StringTokenizer tokenizer = new StringTokenizer(br.readLine());
int n = Integer.parseInt(tokenizer.nextToken());
int m = Integer.parseInt(tokenizer.nextToken());
int s = Integer.parseInt(tokenizer.nextToken());
String[] board = new String[n];
for (int i = 0; i < n; i++) {
board[i] = br.readLine().trim();
}
new FairyChessSolver(n, m, s, board).solve();
}
}
catch (Exception e) {
System.err.println("Error:" + e.getMessage());
}
}
}
Python 3 Fairy Chess HackerRank Solution
Python 2 Fairy Chess HackerRank Solution
import numpy
modulus = 1000000007
def expandBoard(board, S, eboard=None):
(N,N2) = board.shape
assert N==N2
NS = N+2*S+2
if eboard is None:
eboard = numpy.zeros((NS,NS), numpy.longlong)
eboard[S+1:S+N+1,S+1:S+N+1] = board
return eboard
def contractBoard(eboard, S):
(NS, NS2) = eboard.shape
N = NS-2*S-2
board = eboard[S+1:S+N+1, S+1:S+N+1]
return board
def leftDiagonal(eboard, S, L=None):
if L is None:
L = numpy.zeros(eboard.shape, numpy.longlong)
n = eboard.shape[0]
L[0, :] = eboard[0, :]
L[:, 0] = eboard[:, 0]
for i in range(S+1, n-1):
#L[i, 1:n-1] = (eboard[i, 1:n-1] + L[i-1, 0:n-2])%modulus
numpy.add(eboard[i,1:n-1], L[i-1,0:n-2], L[i,1:n-1])
#numpy.mod(L, modulus, L)
return L
def rightDiagonal(eboard, S, R=None):
if R is None:
R = numpy.zeros(eboard.shape, numpy.longlong)
n = eboard.shape[0]
R[0, :] = eboard[0, :]
R[:, n-1] = eboard[:, n-1]
for i in range(S+1, n-1):
#R[i, 0:n-2] = (eboard[i, 0:n-2] + R[i-1, 1:n-1])%modulus
numpy.add(eboard[i, 0:n-2], R[i-1, 1:n-1], R[i, 0:n-2])
#numpy.mod(R, modulus, R)
return R
def ULCornerSum(eboard, S):
"could optimize"
t = 0
s2 = 2*S+2
for i in xrange(S+1):
##pr "ul", eboard[i, S+1: s2-i], i, S+1, s2-i
t += eboard[S+1+i, S+1: s2-i].sum()
return t%modulus
#s2 = 2*S+2
#t = 0
#for i in xrange(s2):
# t+= eboard[i, 0:(s2-i)].sum()
#return t
def RDiag(R, istart, jstart, length, N, out=None):
##pr "Rdiag", (istart, jstart, length, N)
##pr istart-length, istart-length+N
##pr istart-1, istart-1+N
#N1 = N-1
if out is None:
out = numpy.zeros( (N,), numpy.longlong)
assert jstart>=length
out[:] = R[istart+length:istart+length+N, jstart-length]
if jstart>0:
#out = out - R[istart-1:istart-1+N, jstart+1]
numpy.subtract(out, R[istart-1:istart-1+N, jstart+1], out)
numpy.mod(out, modulus, out)
return out
def LDiag(L, istart, jstart, length, N, out=None):
if out is None:
out = numpy.zeros( (N,), numpy.longlong)
#N1 = N-1
out[:] = L[istart+length:istart+length+N, jstart+length]
if istart>0 and jstart>0:
#out = out - L[istart-1:istart-1+N, jstart-1]
numpy.subtract(out, L[istart-1:istart-1+N, jstart-1], out)
numpy.mod(out, modulus, out)
return out
def f(N,M,S,board):
##pr
##pr "f", (N,M,S)
moves = numpy.zeros((N,N), numpy.longlong)
nextmoves = numpy.zeros((N,N), numpy.longlong)
pawns = numpy.ones((N,N), numpy.longlong)
for i in xrange(N):
for j in xrange(N):
b = board[i][j]
if b=="P":
pawns[i][j] = 0
if b=="L":
Li = i
Lj = j
moves[i][j] = 1
##pr moves, "moves"
##pr pawns, "pawns"
m = expandBoard(moves, S)
D = numpy.zeros(m.shape, numpy.longlong)
base = Rm = Lm = Rp = Lp = m = L = R = None
for c in xrange(M):
m = expandBoard(moves, S, m)
#D = numpy.zeros(m.shape, numpy.longlong) # could reuse m
#D[:,:] = 0 # not needed?
##pr m, "m"
D[S+1,S+1] = ULCornerSum(m, S) # could optimize
##pr D, "ulcorner", S
R = rightDiagonal(m, S, R)
##pr R, "R"
L = leftDiagonal(m, S, L)
##pr L, "L"
first = S+1
second = S+2
last = S+N+1
dstart = 1
dend = dstart+2*S
for i in xrange(S+2, S+N+1):
Lm0 = L[i-1,dend]-L[i-1-first,S]
Rp0 = R[i+S,first]-R[i-1,dend+1]
#D[i,first] = D[i-1,first]-(L[i-1,dstart]-L[i-1-first,S])+(R[i+S,S]-R[i-1,2*S+2])
##pr "D[i-1,first]", D[i-1,first], "Lm", Lm, "Rp", Rp
D[i,first] = D[i-1,first]-Lm0+Rp0
##pr D, "first column diamonds"
for j in range(S+2, S+N+1):
base = D[S+1:S+1+N, j-1]
Rm = RDiag(R, dstart, j-1, S-1, N, Rm)
Lm = LDiag(L, first, j-1-S, S, N, Lm)
Rp = RDiag(R, first, j+S, S, N, Rp)
Lp = LDiag(L, dstart, j, S-1, N, Lp)
numpy.add(Rp, Lp, Rp)
numpy.add(Rp, base, Rp)
numpy.subtract(Rp, Rm, Rp)
numpy.subtract(Rp, Lm, Rp)
D[S+1:S+1+N, j] = Rp #(base - Rm - Lm + Rp + Lp)%modulus
#D[S+1:S+1+N,j] = ( D[S+1:S+1+N,j-1] -
# Rdiag(R, 0, j-1, S-1, N) -
# Ldiag(L, S, j-S-1, S, N) +
# Rdiag(R, S, j+S, S, N) +
# Ldiag(L, 0, j, S-1, N))
##pr D, "col", j, "diamonds"
#pr D, "final diamonds"
moves = contractBoard(D, S)
#moves = (moves * pawns)%modulus
numpy.multiply(moves, pawns, moves)
numpy.mod(moves, modulus, moves)
#pr moves, "contracted moves"
m,D = D,m
return (moves.sum())%modulus
def tt(N,M,S, check=True):
import random
from random import randint
import time
import fairyb
random.seed(N)
b = [ ["."] * N for i in xrange(N) ]
pcount = randint(0,N*N/2)
for i in xrange(pcount):
b[ randint(0,N-1)][randint(0,N-1) ] = "P"
b[ randint(0,N-1)][randint(0,N-1)] = "L"
#for x in b:
# print "".join(x)
print
now = time.time()
t = f(N,M,S, b)
elapsed = time.time()-now
print t, elapsed
if check:
t2 = fairyb.f(N,M,S,b)
print t, t2
assert t==t2
if 1 and __name__=="__main__":
import sys
r = sys.stdin.readline
T = int(r().strip())
for c in range(T):
(n,m,S) = map(int, r().split())
board = []
for i in xrange(n):
line = r().strip()
board.append(line)
print f(n,m,S,board)
C Fairy Chess HackerRank Solution
#include <stdlib.h>
#include <stdio.h>
#include <strings.h>
#define MAX_WIDTH 200
#define MAX_MOVE 201
#define MODULAR 1000000007
#define FORMAT_RESULT(x) if (x >= MODULAR) {\
x -= MODULAR;\
} else if (x < 0) {\
x += MODULAR;\
}
char board[MAX_WIDTH][MAX_WIDTH];
int width; // board width
int max_step; // step can move once
int max_moves;
int result[MAX_MOVE][MAX_WIDTH][MAX_WIDTH] = {0};
int cache_asc[2][MAX_WIDTH][MAX_WIDTH];
int cache_desc[2][MAX_WIDTH][MAX_WIDTH];
int read_index;
int write_index;
void
compute(int moves)
{
int y, x, x1, y1, y2, x2, dx, dy;
// (0, 0)
for (y = 0; y < max_step; y++) {
result[moves][0][0] += cache_desc[read_index][y][0];
FORMAT_RESULT(result[moves][0][0]);
}
if (max_step < width) {
result[moves][0][0] += cache_desc[read_index][max_step][0];
FORMAT_RESULT(result[moves][0][0]);
} else {
if (1 < width) {
result[moves][0][0] += cache_desc[read_index][max_step - 1][1];
FORMAT_RESULT(result[moves][0][0]);
}
}
cache_desc[write_index][0][0] = cache_asc[write_index][0][0] = board[0][0] == 'P' ? 0 : result[moves][0][0];
// [(1, 0), (width - 1, 0)]
for (x = 1; x < width; x++) {
result[moves][0][x] = result[moves][0][x - 1];
x1 = x;
y1 = max_step;
if (y1 >= width) {
dy = y1 - width + 1;
y1 -= dy;
x1 += dy;
}
if (x1 < width) {
result[moves][0][x] += cache_desc[read_index][y1][x1];
FORMAT_RESULT(result[moves][0][x]);
}
x1 = x - 1;
y1 = max_step;
if (y1 >= width) {
dy = y1 - width + 1;
y1 -= dy;
x1 -= dy;
}
if (x1 >= 0) {
result[moves][0][x] -= cache_asc[read_index][y1][x1];
FORMAT_RESULT(result[moves][0][x]);
}
cache_desc[write_index][0][x] = cache_asc[write_index][0][x] = board[0][x] == 'P' ? 0 : result[moves][0][x];
}
// [(0, 1), (width - 1, width - 1)]
for (y = 1; y < width; y++) {
for (x = 0; x < width; x++) {
result[moves][y][x] = result[moves][y - 1][x];
x1 = x;
y1 = y + max_step;
x2 = x + max_step;
y2 = y;
if (y1 >= width) {
dy = y1 - width + 1;
y1 -= dy;
x1 += dy;
}
if (x1 < width) {
if (x2 >= width - 1) {
result[moves][y][x] += cache_desc[read_index][y1][x1];
FORMAT_RESULT(result[moves][y][x]);
} else {
result[moves][y][x] += cache_desc[read_index][y1][x1] - cache_desc[read_index][y2 - 1][x2 + 1];
FORMAT_RESULT(result[moves][y][x]);
}
}
x1 = x;
y1 = y + max_step;
x2 = x - max_step;
y2 = y;
if (y1 >= width) {
dy = y1 - width + 1;
y1 -= dy;
x1 -= dy;
}
if (x1 >= 0) {
if (x2 <= 0) {
result[moves][y][x] += cache_asc[read_index][y1][x1];
FORMAT_RESULT(result[moves][y][x]);
} else {
result[moves][y][x] += cache_asc[read_index][y1][x1] - cache_asc[read_index][y2 - 1][x2 - 1];
FORMAT_RESULT(result[moves][y][x]);
}
}
if (y + max_step < width) {
result[moves][y][x] -= result[moves - 1][y + max_step][x];
FORMAT_RESULT(result[moves][y][x]);
}
x1 = x + max_step;
y1 = y - 1;
x2 = x;
y2 = y - 1 - max_step;
if (x1 >= width) {
dx = x1 - width + 1;
y1 -= dx;
x1 -= dx;
}
if (y1 >= 0) {
if (y2 <= 0 || x2 == 0) {
result[moves][y][x] -= cache_asc[read_index][y1][x1];
FORMAT_RESULT(result[moves][y][x]);
} else {
result[moves][y][x] -= cache_asc[read_index][y1][x1] - cache_asc[read_index][y2 - 1][x2 - 1];
FORMAT_RESULT(result[moves][y][x]);
}
}
x1 = x - max_step;
y1 = y - 1;
x2 = x;
y2 = y - 1 - max_step;
if (x1 < 0) {
dx = -x1;
x1 += dx;
y1 -= dx;
}
if (y1 >= 0) {
if (y2 <= 0 || x2 == width - 1) {
result[moves][y][x] -= cache_desc[read_index][y1][x1];
FORMAT_RESULT(result[moves][y][x]);
} else {
result[moves][y][x] -= cache_desc[read_index][y1][x1] - cache_desc[read_index][y2 - 1][x2 + 1];
FORMAT_RESULT(result[moves][y][x]);
}
}
if (y - 1 - max_step >= 0) {
result[moves][y][x] += result[moves - 1][y - 1 - max_step][x];
FORMAT_RESULT(result[moves][y][x]);
}
cache_asc[write_index][y][x] = x > 0 ? cache_asc[write_index][y - 1][x - 1] : 0;
cache_desc[write_index][y][x] = (x < width - 1) ? cache_desc[write_index][y - 1][x + 1] : 0;
if (board[y][x] != 'P') {
cache_desc[write_index][y][x] += result[moves][y][x];
FORMAT_RESULT(cache_desc[write_index][y][x]);
cache_asc[write_index][y][x] += result[moves][y][x];
FORMAT_RESULT(cache_asc[write_index][y][x]);
}
}
}
for (y = 0; y < width; y++) {
for (x = 0; x < width; x++) {
if (board[y][x] == 'P') {
result[moves][y][x] = 0;
}
}
}
}
int
main (int argc, char *argv[])
{
int num_case;
int x, y, moves, sum, i, j;
scanf("%d", &num_case);
while (num_case--) {
bzero(result, sizeof(int) * MAX_MOVE * MAX_WIDTH * MAX_WIDTH);
bzero(cache_asc, sizeof(int) * 2 * MAX_WIDTH * MAX_WIDTH);
bzero(cache_desc, sizeof(int) * 2 * MAX_WIDTH * MAX_WIDTH);
scanf("%d %d %d", &width, &max_moves, &max_step);
for (y = width - 1; y >= 0; y--) {
scanf("%s", board[y]);
}
read_index = 0;
write_index = 1;
for (y = 0; y < width; y++) {
for (x = 0; x < width; x++) {
if (board[y][x] == 'L') {
result[0][y][x] = 1;
}
if (x > 0 && y > 0) {
cache_asc[read_index][y][x] = result[0][y][x] + cache_asc[read_index][y - 1][x - 1];
} else {
cache_asc[read_index][y][x] = result[0][y][x];
}
if (x < width && y > 0) {
cache_desc[read_index][y][x] = result[0][y][x] + cache_desc[read_index][y - 1][x + 1];
} else {
cache_desc[read_index][y][x] = result[0][y][x];
}
}
}
for (moves = 1; moves <= max_moves; moves++) {
compute(moves);
if (read_index == 1) {
write_index = 1;
read_index = 0;
} else {
write_index = 0;
read_index = 1;
}
}
sum = 0;
for (y = 0; y < width; y++) {
for (x = 0; x < width; x++) {
sum += result[max_moves][y][x];
FORMAT_RESULT(sum);
}
}
printf("%d\n", sum);
}
return 0;
}
/* vim: set ts=4 sw=4 sts=4 tw=100 et: */
Warmup
Implementation
Strings
Sorting
Search
Graph Theory
Greedy
Dynamic Programming
Constructive Algorithms
Bit Manipulation
Recursion
Game Theory
NP Complete
Debugging
Leave a comment below
