제출 #1159641

#제출 시각아이디문제언어결과실행 시간메모리
1159641rdabaFoehn Phenomena (JOI17_foehn_phenomena)C++17
30 / 100
1096 ms2012 KiB
#include <bits/stdc++.h>
using namespace std;
#define ll long long
int main() {
     ios::sync_with_stdio(0);
     cin.tie(0);
     ll n,m,s,t;
     cin >> n >> m >> s >> t;
     ll a[n+1];
     cin >> a[0];
     for (int i=1; i<=n; i++) cin >> a[i];
     while (m--) {
          ll l,r,x,ans=0;
          cin >> l >> r >> x;
          for (int i=l; i<=r; i++) a[i]+=x;
          for (int i=0; i<n; i++) {
               if (a[i]<a[i+1]) ans-=(a[i+1]-a[i])*s;
               else ans+=(a[i]-a[i+1])*t;
          }
          cout << ans << '\n';
     }
}
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