Submission #974710

#	Time	Username	Problem	Language	Result	Execution time	Memory
974710		Abito	Street Lamps (APIO19_street_lamps)	C++17	20 / 100	1 ms	856 KiB

street_lamps

#include <bits/stdc++.h>
#define F first
#define S second
#define pb push_back
#define ppb pop_back
#define ep insert
#define endl '\n'
#define elif else if
#define pow pwr
#define sqrt sqrtt
//#define int long long
#define ll long long
typedef unsigned long long ull;
using namespace std;
const int N=105+5;
int n,q;
bool a[N][N];
int32_t main(){
    ios_base::sync_with_stdio(false);cin.tie(NULL);cout.tie(NULL);
    cin>>n>>q;
    for (int i=1;i<=n;i++){
        char c;cin>>c;
        if (c=='1') a[0][i]=1;
    }
    for (int i=1;i<=q;i++){
        for (int j=1;j<=n;j++) a[i][j]=a[i-1][j];
        string s;
        cin>>s;
        if (s=="toggle"){
            int x;cin>>x;
            a[i][x]=!a[i][x];
            continue;
        }
        int l,r,ans=0;cin>>l>>r;
        for (int j=0;j<i;j++){
            bool ok=true;
            for (int k=l;k<r;k++) ok&=a[j][k];
            ans+=ok;
        }
        cout<<ans<<endl;
    }
    return 0;
}

• Subtask 1: 20 / 20
• Subtask 2: 0 / 20
• Subtask 3: 0 / 20
• Subtask 4: 0 / 20
• Subtask 5: 0 / 20