Submission #1145538

#	Time	Username	Problem	Language	Result	Execution time	Memory
1145538		eloj	Foehn Phenomena (JOI17_foehn_phenomena)	C++20	30 / 100	1095 ms	2488 KiB

foehn_phenomena

#include <bits/stdc++.h>
using namespace std;
#define int long long
#define ff first
#define ss second
#define pii pair<int,int>
#define pb push_back




vector <int> h;
signed main(){
    int n, q, s, t;
    cin >> n >> q >> s >> t;
    n++;
    for(int i=0; i<n; i++){
        int a;
        cin >> a;
        h.pb(a);
    }
    vector <int> ans;
    while(q--){
        int l, r, x;
        cin >> l >> r >> x;
        for(int i=l; i<=r; i++){
            h[i]+=x;
        }
        
        int now=0;
        for(int i=0; i<n-1; i++){
            if(h[i] < h[i+1]) now-=abs(h[i]-h[i+1])*s;
            else now += abs(h[i]-h[i+1])*t;
        }
        ans.pb(now);
    }
    for(auto x:ans) cout << x << endl;
    // If Ai < Ai+1, the temperature of the wind decreases by S degrees per altitude.
    // If Ai ≧ Ai+1, the temperature of the wind increases by T degrees per altitude.
}

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