제출 #237438

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
237438		Sorting	Election (BOI18_election)	C++14	0 / 100	13 ms	384 KiB

election

#include <bits/stdc++.h>

using namespace std;

const int mx_N = 5e5 + 3;

int n, q;
string s;

int a[mx_N];

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

    cin >> n >> s;

    for(int i = 0; i < n; ++i)
        a[i + 1] = (s[i] == 'C') ? 1 : -1;

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

        vector<int> v;
        int sum = 0, answer = 0;
        for(int j = l; j <= r; ++j){
            if(!sum && a[j] == -1)
                answer++;
            else{
                sum += a[j];
                //v.push_back(a[j]);
            }
        }

        int answer2 = answer;
        for(int j = l; j <= r; ++j){
            if(a[j] == -1 && answer2){
                answer2--;
            }
            else{
                sum += a[j];
                v.push_back(a[j]);
            }
        }

        reverse(v.begin(), v.end());

        sum = 0;
        for(int x: v){
            if(!sum && x == -1)
                answer++;
            else
                sum += x;
        }

        cout << answer << "\n";
    }
}

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