Submission #414157

#	Time	Username	Problem	Language	Result	Execution time	Memory
414157		shivensinha4	Election (BOI18_election)	C++17	28 / 100	3055 ms	1780 KiB

election

#include <bits/stdc++.h>
using namespace std;
#define for_(i, s, e) for (int i = s; i < (int) e; i++)
#define for__(i, s, e) for (ll i = s; i < e; i++)
typedef long long ll;
typedef vector<int> vi;
typedef array<int, 2> ii;
#define endl '\n'


int main() {
#ifdef mlocal
    freopen("test.in", "r", stdin);
#endif

    ios_base::sync_with_stdio(false);
    cin.tie(0);

    int n; cin >> n;
    vi nums(n);
    for_(i, 0, n) {
        char c; cin >> c;
        nums[i] = c == 'C' ? 1 : -1;
    }

    auto solve = [&] (int l, int r) {
        int s = 0, mov = 0, mx = 0;
        for_(i, l, r+1) {
            s += nums[i];
            if (s < 0) {
                mov++;
                s = 0;
            }
            mx = max(mx, s);
        }
        return mov+mx-s;
    };

    int q; cin >> q;
    while (q--) {
        int l, r; cin >> l >> r;
        cout << solve(l-1, r-1) << endl;
    }
}

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