Submission #976865

#	Time	Username	Problem	Language	Result	Execution time	Memory
976865		AIF_is_carving	Street Lamps (APIO19_street_lamps)	C++17	20 / 100	5076 ms	524288 KiB

street_lamps

#include <bits/stdc++.h>
 
typedef long long ll;
using namespace std;

void solve(){

    int n, q; cin>>n>>q;
    string str[q+1];
    cin>>str[0];

    for(int i=1; i<=q; i++){
        string mark;
        cin>>mark;
        if(mark == "toggle"){
            int ind; cin>>ind;
            string s = str[i-1];
            if(s[ind-1] == '0') s[ind-1] = '1';
            else s[ind-1]='0';

            str[i] = s;
        }
        else{
            int l, r; cin>>l>>r;
            int ans = 0;
            for(int j=0; j<=i-1; j++){
                int flag =1;
                for(int k = l-1; k<r-1; k++){
                    if(str[j][k] == '0') flag = 0;
                }
                ans+=flag;
            }

            

            cout<<ans<<"\n";

            str[i] =str[i-1];
        }
    }
    

    return;

}

int main(){   
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);

    int t=1; //cin>>t;

    while(t--){
        solve();
    }

    return 0;

}
 

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