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Submission #565570

# Submission time Handle Problem Language Result Execution time Memory
565570 2022-05-21T06:49:21 Z birthdaycake Election (BOI18_election) C++17
28 / 100
 3000 ms 1336 KB 
#include<bits/stdc++.h>
#define int long long
#define endl '\n'
#define mod 1000000007
#define boost ios_base::sync_with_stdio(false), cin.tie(NULL);
using namespace std;
 
 
 

 
int y[200001];
signed main(){
    boost;
    
    int n; cin >> n;
    string a; cin >> a;
    int q; cin >> q;
    while(q--){
        int l,r, cur = 0, ans = 0; cin >> l >> r;
        l--; r--;
        for(int i = l; i <= r; i++){
            y[i] = 0;
            
            if(a[i] == 'T') cur--;
            else cur++;
            
            if(cur < 0){
                y[i]++;
                cur++;
                ans++;
            }
        }
        cur = 0;
        for(int i = r; i >= l; i--){
            if(y[i]) continue;
            if(a[i] == 'T') cur--;
            else cur++;
            if(cur < 0){
                ans++;
                cur++;
            }
        }
        cout << ans << endl;
    }
    
    return 0;
}

Subtask #1
28.0 / 28.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 340 KB Output is correct
2 Correct 7 ms 352 KB Output is correct
3 Correct 5 ms 340 KB Output is correct
4 Correct 5 ms 340 KB Output is correct
5 Correct 3 ms 264 KB Output is correct

Subtask #2
0 / 54.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 340 KB Output is correct
2 Correct 7 ms 352 KB Output is correct
3 Correct 5 ms 340 KB Output is correct
4 Correct 5 ms 340 KB Output is correct
5 Correct 3 ms 264 KB Output is correct
6 Execution timed out 3061 ms 1336 KB Time limit exceeded
7 Halted 0 ms 0 KB -

Subtask #3
0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 340 KB Output is correct
2 Correct 7 ms 352 KB Output is correct
3 Correct 5 ms 340 KB Output is correct
4 Correct 5 ms 340 KB Output is correct
5 Correct 3 ms 264 KB Output is correct
6 Execution timed out 3061 ms 1336 KB Time limit exceeded
7 Halted 0 ms 0 KB -