Submission #1126293

#	Time	Username	Problem	Language	Result	Execution time	Memory
1126293		heey	Foehn Phenomena (JOI17_foehn_phenomena)	C++20	30 / 100	1095 ms	2000 KiB

foehn_phenomena

#include <bits/stdc++.h>
using namespace std;
const int maxn = 2e5+2;
int n, q, s, t;
long long a[maxn];

signed main(){
	ios_base::sync_with_stdio(0); cin.tie(0);
	cin >> n >> q >> s >> t;
	for(int i = 0; i <= n; i++) cin >> a[i];


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

		for(int i = l; i <= r; i++){
			a[i] += x;
		}

		long long ans = 0;
		for(int i = 1; i <= n; i++){
			if(a[i] > a[i-1]) ans -= (long long)s * (a[i] - a[i-1]);
			else ans += (long long)t * (a[i-1] - a[i]);
		}
		cout << ans << '\n';
	}

	return 0;
}

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