Submission #7636716

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Source Code Expand

#include <bits/stdc++.h>
#define int long
#define ll long long
#define rep(i, n) for(int i = 0; i < n; i++)
#define IOS cin.tie(0); ios::sync_with_stdio(false)
using namespace std;
int gcd(int a,int b){return b ? gcd(b,a%b) : a;}
int lcm(int a,int b){return a/gcd(a,b)*b;}

main() {
    int H,W; cin >> H >> W;
    int A,B; cin >> A >> B;
    string S,T;
    rep(i,W){
        if(A>i){
            S.push_back('1');
        }
        else S.push_back('0');
    }
    rep(i,W){
        if(S[i]=='0') T.push_back('1');
        else T.push_back('0');
    }
    rep(i,H){
        if(B>i){
            rep(j,W){
                cout << S[j] << (j==W-1 ? "" : " ");
            }
        }
        else {
            rep(j,W){
                cout << T[j] << (j==W-1 ? "" : " ");
            }
        }
        cout << endl;
    }
}

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