Submission #1128761

#	Time	Username	Problem	Language	Result	Execution time	Memory
1128761		_Temirhan	Bomb (IZhO17_bomb)	C++20	24 / 100	29 ms	6724 KiB

bomb

#include <bits/stdc++.h>

using namespace std;
  
#define int long long
#define pb push_back
#define sz(x) x.size()
#define F first
#define S second
#define nl '\n'

void Tima() 
{
    #ifndef ONLINE_JUDGE
    freopen("input.txt", "r", stdin);
    freopen("output.txt", "w", stdout);
    #endif
}  

const int N = 3000;
const int inf = 1e12;
const int mod = 1e9 + 7;
int n, m;
string t[N];

signed main() 
{
    // Tima();
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    cin >>n >>m;
    for( int i = 1; i <= n; ++i )
    {
        cin >>t[i];
        t[i] = "0" + t[i];
    }
    int mnh = inf, mnv = inf;
    for( int i = 1; i <= n; ++i )
        for( int j = 1; j <= m; ++j )
        {
            if( t[i][j] == '0' )
                continue;
            int j1 = j;
            while( j1 < m && t[i][j1 + 1] == '1' )
                ++j1;
            mnh = min(mnh, j1 - j + 1);
            j = j1;
        }
    if( mnh == inf )
        mnh = 1;
    for( int j = 1; j <= m; ++j )
        for( int i = 1; i <= n; ++i )
        {
            if( t[i][j] == '0' )
                continue;
            int i1 = i;
            while( i1 < n && t[i1 + 1][j] == '1' )
                ++i1;
            mnv = min(mnv, i1 - i + 1);
            i = i1;
        }
    if( mnv == inf )
        mnv = 1;
    cout <<mnh * mnv;
}

Compilation message (stderr)

bomb.cpp: In function 'void Tima()':
bomb.cpp:15:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   15 |     freopen("input.txt", "r", stdin);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~
bomb.cpp:16:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   16 |     freopen("output.txt", "w", stdout);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 24 / 100