Submission #1118092

#	Time	Username	Problem	Language	Result	Execution time	Memory
1118092		vjudge1	Foehn Phenomena (JOI17_foehn_phenomena)	C++14	40 / 100	1061 ms	10580 KiB

foehn_phenomena

#include <bits/stdc++.h>
#define sts(v) stable_sort(v.BE, v.E)
#define Rsts(v) stable_sort(v.rBE, v.rE)
#define rev(v) reverse(v.BE, v.E)
#define BE begin()
#define rBE rbegin()
#define E end()
#define rE rend()
#define pb push_back
#define ppb pop_back()
#define pf push_front
#define ppf pop_front()
#define F first
#define S second

using namespace std;
using ll = long long;

struct datos{
    int val, w, k;
};

int main(){
    ios_base::sync_with_stdio(0); 
    cin.tie(0); cout.tie(0);

    int n, Q, S, T; cin >> n >> Q >> S >> T;
    vector<ll> v(n + 1);

    for(int i = 0; i <= n; i++)
        cin >> v[i];

    while(Q--){
        int l, r, x; cin >> l >> r >> x;

        if(S == T){
            if(r == n)v[n] += x;
            cout << -(v[n] * S) << '\n';
        }else{
            while(l <= r){
                v[l] += x;
                l++;
            }
            ll Temp[n + 1];
            Temp[0] = 0;
            for(int i = 1; i <= n; i++){
                Temp[i] = Temp[i - 1];
                if(v[i] > v[i - 1])
                    Temp[i] -= S * (v[i] - v[i - 1]);
                else 
                    Temp[i] += T * (v[i - 1] - v[i]);
            }

            cout << Temp[n] << '\n';
        }
    }

    return 0;
}

• Subtask 1: 30 / 30
• Subtask 2: 10 / 10
• Subtask 3: 0 / 60