Submission #289627

#	Time	Username	Problem	Language	Result	Execution time	Memory
289627		rocks03	Foehn Phenomena (JOI17_foehn_phenomena)	C++14	0 / 100	1089 ms	3704 KiB

foehn_phenomena

#include<bits/stdc++.h>
using namespace std;
#define ll long long
#define pld pair<long double, int>
#define pii pair<int, int>
#define pll pair<ll, ll>
#define pb push_back
#define ff first
#define ss second
#define SZ(x) ((int)(x).size())
#define ld long double
mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());

const int MAXN = 2e5+100;
int N, Q;
ll S, T, a[MAXN];

void read(){
    cin >> N >> Q >> S >> T;
    for(int i = 0; i <= N; i++){
        cin >> a[i];
    }
}

ll calcola(){
    int t = 0;
    for(int i = 0; i < N; i++){
        if(a[i] < a[i+1])
            t -= (a[i+1] - a[i]) * S;
        else if(a[i] > a[i+1])
            t += (a[i] - a[i+1]) * T;
    }
    return t;
}

void solve(){
    read();
    while(Q--){
        int l, r, x;
        cin >> l >> r >> x;
        for(int i = l; i <= r; i++) a[i] += x;
        cout << calcola() << "\n";
    }
}

int main(){
    ios_base::sync_with_stdio(false);
    solve();
    return 0;
}

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