Submission #1128777

#	Time	Username	Problem	Language	Result	Execution time	Memory
1128777		BilAktauAlmansur	Bomb (IZhO17_bomb)	C++20	24 / 100	122 ms	24984 KiB

bomb

#include <bits/stdc++.h>
#pragma optimize("g", on)
#pragma GCC optimize ("03")
#pragma GCC target ("sse,sse2,sse3,ssse3,sse4,popcnt,abm,avx2,mmx,fma,avx,tune=native")
void Freopen () {
    #ifndef ONLINE_JUDGE
    freopen("input.txt", "r", stdin);
    freopen("output.txt", "w", stdout);
    #endif
}
using namespace std;
#define fi first
#define se second
// #define int long long
const int N = 2500 + 7, M = 1e6 + 1, mod = 1e9 + 7;

int n, m, c[N][N];
void solve() {
	cin>>n>>m;
	for(int i = 1; i <= n; i++) {
		for(int j = 1; j <= m; j++) {
			char s;
			cin>>s;
			c[i][j] = (s - '0');
		}
	}
	int X = n + 1, Y = m + 1;
	for(int j = 1; j <= m; j++) {
		int cnt = 0;
		for(int i = 1; i <= n; i++) {
			if(c[i][j])cnt ++;
			else {
				if(c[i - 1][j])X = min(X, cnt);
				cnt = 0;
			}
		}
		if(c[n][j])X = min(X, cnt);
	}
	for(int i = 1; i <= n; i++) {
		int cnt = 0;
		for(int j = 1; j <= m; j++) {
			if(c[i][j])cnt ++;
			else {
				if(c[i][j - 1])Y = min(Y, cnt);
				cnt = 0;
			}
		}
		if(c[i][m])Y = min(Y, cnt);
	}
	cout << X * Y << '\n';
}
signed main() {
	// freopen("duty.in", "r", stdin);
	// freopen("duty.out", "w", stdout);
	ios_base::sync_with_stdio(false);
	cin.tie(0);
	cout.tie(0);
	//Freopen();
	int T = 1;
	// cin>>T;
	while(T --)solve();
}

Compilation message (stderr)

bomb.cpp: In function 'void Freopen()':
bomb.cpp:7:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
    7 |     freopen("input.txt", "r", stdin);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~
bomb.cpp:8:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
    8 |     freopen("output.txt", "w", stdout);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 24 / 100