Submission #719490

#	Time	Username	Problem	Language	Result	Execution time	Memory
719490		keisuke6	Street Lamps (APIO19_street_lamps)	C++14	20 / 100	5076 ms	524288 KiB

street_lamps

#include <bits/stdc++.h>
using namespace std;
#define int long long
signed main(){
  int N,Q;
  string s;
  cin>>N>>Q>>s;
  vector<string> S={};
  for(int i=0;i<Q;i++){
    S.push_back(s);
    string q;
    cin>>q;
    if(q[0] != 'q'){
      int a;
      cin>>a;
      s[a-1] = '1'-s[a-1]+'0';
      continue;
    }
    int l,r;
    cin>>l>>r;
    l--;
    r--;
    int ans = 0;
    for(string ss:S){
      bool ok = true;
      for(int j=l;j<r;j++)if(ss[j] == '0') ok = false;
      ans += ok;
    }
    cout<<ans<<endl;
  }
}

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