제출 #1324014

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1324014		sh_qaxxorov_571	Foehn Phenomena (JOI17_foehn_phenomena)	C++20	100 / 100	78 ms	7296 KiB

foehn_phenomena

#include <iostream>
#include <vector>

using namespace std;

typedef long long ll;

ll S, T;

// Bitta farq uchun harorat o'zgarishini hisoblash
ll calc(ll d) {
    if (d > 0) return -d * S;
    return -d * T;
}

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

    int N, Q;
    cin >> N >> Q >> S >> T;

    vector<ll> A(N + 1);
    vector<ll> D(N + 2, 0);
    ll current_temp = 0;

    for (int i = 0; i <= N; i++) {
        cin >> A[i];
        if (i > 0) {
            D[i] = A[i] - A[i-1];
            current_temp += calc(D[i]);
        }
    }

    for (int j = 0; j < Q; j++) {
        int L, R;
        ll X;
        cin >> L >> R >> X;

        // L-nuqtadagi o'zgarish
        current_temp -= calc(D[L]);
        D[L] += X;
        current_temp += calc(D[L]);

        // R+1 nuqtadagi o'zgarish (agar u N dan katta bo'lmasa)
        if (R + 1 <= N) {
            current_temp -= calc(D[R+1]);
            D[R+1] -= X;
            current_temp += calc(D[R+1]);
        }

        cout << current_temp << "\n";
    }

    return 0;
}

• Subtask 1: 30 / 30
• Subtask 2: 10 / 10
• Subtask 3: 60 / 60