Submission #505440

#	Time	Username	Problem	Language	Result	Execution time	Memory
505440		mansur	Bomb (IZhO17_bomb)	C++17	6 / 100	105 ms	6420 KiB

bomb

#include<bits/stdc++.h>	
 
#pragma optimize ("g",on)
#pragma GCC optimize ("inline")
#pragma GCC optimize ("Ofast")
#pragma GCC optimize ("unroll-loops")
#pragma GCC optimize ("03")
#pragma GCC target ("sse,sse2,sse3,ssse3,sse4,popcnt,abm,avx2,mmx,fma,avx,tune=native")
#pragma comment(linker, "/stack:200000000")

//01001101 01100001 01101011 01101000 01100001  01100111 01100001 01111001 

using namespace std;

#define all(a) a.begin(), a.end()                                                   
#define rall(a) a.rbegin(), a.rend()
#define ll long long
#define pb push_back
#define sz(a) a.size()
#define nl '\n'
#define popb pop_back()                                                                   
#define ld double
#define ull unsigned long long
#define ff first                                         
#define ss second  
#define fix fixed << setprecision
#define pii pair<int, int>                          
#define E exit (0)
#define int long long
 
const int inf = 1e9, N = 1e6 + 1, mod = 998244353;                    

vector<pii> dir = {{1, 0}, {0, 1}, {-1, 0}, {0, -1}};

main() {                                                         
	//freopen("cowrect.in", "r", stdin);                                                                                     
	//freopen("cowrect.out", "w", stdout);                                                                                     
	ios_base::sync_with_stdio(NULL);                                                                                        
	cin.tie(NULL);  
	int n, m;
	cin >> n >> m;
	char c[n + 1][m + 1];
	for (int i = 1; i <= n; i++) {
	 	for (int j = 1; j <= m; j++) {
	 	 	cin >> c[i][j];
	 	}
	}
	if (n == 1) {
		int cnt = 0, mn = n * m;
		for (int i = 1; i <= m; i++) {
			if (c[1][i] == '1') cnt++;
			else {
				if (cnt)
					mn = min(mn, cnt);
				cnt = 0;
			}
		}
		if (cnt) mn = min(mn, cnt);
		cout << mn << nl;
	}else if (m == 1) {
		int cnt = 0, mn = n * m;
		for (int i = 1; i <= n; i++) {
			if (c[i][1] == '1') cnt++;
			else {
				if (cnt)
					mn = min(mn, cnt);
				cnt = 0;
			}
		}
		if (cnt) mn = min(mn, cnt);
		cout << mn << nl;
	}else cout << 1;
}

Compilation message (stderr)

bomb.cpp:3: warning: ignoring '#pragma optimize ' [-Wunknown-pragmas]
    3 | #pragma optimize ("g",on)
      | 
bomb.cpp:9: warning: ignoring '#pragma comment ' [-Wunknown-pragmas]
    9 | #pragma comment(linker, "/stack:200000000")
      | 
bomb.cpp:35:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   35 | main() {
      | ^~~~

• Subtask 1: 6 / 100