Submission #915563

#	Time	Username	Problem	Language	Result	Execution time	Memory
915563		vjudge1	Bomb (IZhO17_bomb)	C++17	24 / 100	58 ms	56400 KiB

bomb

#pragma GCC optimize("Ofast")
#pragma GCC target("avx,avx2,fma")
#pragma GCC optimization("unroll-loops")
#pragma GCC optimize("O3,unroll-loops")
#pragma GCC target("avx2,bmi,bmi2,popcnt,lzcnt")
#include <bits/stdc++.h>
#include <vector>
#define int long long 
#define pb push_back
#define str string
using namespace std;

int pp[3001];

void solve(){
    int n,m;
    cin>>n>>m;
    if(n<=3000 && m<=3000){
        str s[n+3];
        int a[n+3][m+3];
        int o=0;
        int ss=10000000,b=10000000;
        for(int i=1;i<=n;i++){
            cin>>s[i];
            int k=0;
            for(int j=0;j<m;j++){
                a[i][j+1]=s[i][j]-'0';
                if(a[i][j+1]==1){
                    k++;
                    pp[j+1]++;
                }
                else{
                    if(k>0){
                        ss=min(ss,k);
                        k=0;
                    }
                    if(pp[j+1]>0){
                        b=min(b,pp[j+1]);
                        pp[j+1]=0;
                    }
                }
                if(pp[j+1]>0 && i==n){
                    b=min(b,pp[j+1]);
                    //pp[j+1]=0;
                }
            }
            if(k>0){
                ss=min(ss,k);
                k=0;
            }
        }
        cout<<ss*b;
        
    }
}

signed main(){
	ios_base::sync_with_stdio(0),cin.tie(0),cout.tie(0);
	//srand( time(0));
	//rand()
	//freopen("sum.in", "r", stdin);
	//freopen("sum.out", "w", stdout);
    int tests=1;
    //cin>>tests;
    for(int i=1;i<=tests;i++){
		//cout<<"TEST CASE : "<<i<<"\n";
		solve();
	}
}

Compilation message (stderr)

bomb.cpp:3: warning: ignoring '#pragma GCC optimization' [-Wunknown-pragmas]
    3 | #pragma GCC optimization("unroll-loops")
      | 
bomb.cpp: In function 'void solve()':
bomb.cpp:21:13: warning: unused variable 'o' [-Wunused-variable]
   21 |         int o=0;
      |             ^

• Subtask 1: 24 / 100