agc016C - +/- Rectangle(构造 智商题)

#include<bits/stdc++.h>
using namespace std;
const int MAXN = 1e6 + 10, INF = 1e9 + 10;
inline int read() {
    char c = getchar(); int x = 0, f = 1;
    while(c < '0' || c > '9') {if(c == '-') f = -1; c = getchar();}
    while(c >= '0' && c <= '9') x = x * 10 + c - '0', c = getchar();
    return x * f;
}
int N, M, h, w;
int ans[501][501];
main() {
    N = read(); M = read(); h = read(); w = read();
    if(N % h == 0 && M % w == 0) {puts("No"); return 0;}

    int sum = 0;
    for(int i = 1; i <= N; i++)
        for(int j = 1; j <= M; j++) {
            if(i % h == 0 && j % w == 0) ans[i][j] =  - h * w * 1000 + 999;
            else ans[i][j] = 1000;            
            sum += ans[i][j];
        }
    if(sum <= 0) {puts("No"); return 0;}
    puts("Yes");
    for(int i = 1; i <= N; i++, puts(""))
        for(int j = 1; j <= M; j++)
            printf("%d ", ans[i][j]);
    return 0;
}