Submission #384535

#	Time	Username	Problem	Language	Result	Execution time	Memory
384535		Peti	Election (BOI18_election)	C++14	28 / 100	3039 ms	1020 KiB

election

#include <bits/stdc++.h>

using namespace std;

int main()
{
    cin.sync_with_stdio(false);
    cin.tie(0);

    int n, q;
    string s;
    cin>>n;
    cin>>s;
    cin>>q;

    for(int i = 0; i < q; i++){
        int l, r;
        cin>>l>>r;

        int x = 0;
        vector<bool> kell(n, false);
        for(int j = l-1; j < r; j++){
            if(s[j] == 'T' && x > 0){
                x--;
                kell[j] = true;
            } else if(s[j] == 'C')
                x++;
        }
        x = 0;
        for(int j = r-1; j >= l-1; j--){
            if(s[j] == 'T' && kell[j]){
                if(x == 0)
                    kell[j] = false;
                else
                    x--;
            } else if(s[j] == 'C')
                x++;
        }
        int meg = 0;
        for(int j = l-1; j < r; j++)
            if(s[j] == 'T' && !kell[j])
                meg++;
        cout<<meg<<"\n";
    }

    return 0;
}

• Subtask 1: 28 / 28
• Subtask 2: 0 / 54
• Subtask 3: 0 / 18