Submission #1116218

#	Time	Username	Problem	Language	Result	Execution time	Memory
1116218		staszic_ojuz	Foehn Phenomena (JOI17_foehn_phenomena)	C++17	30 / 100	1062 ms	3408 KiB

foehn_phenomena

#include <iostream>
#include <vector>
using namespace std;
int main(){
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);
    long long n, q, s, t;
    cin>>n>>q>>s>>t;
    vector<long long> vect(n+1);
    for (long long i=0;i<n+1;i++) cin>>vect[i];
    vector<long long> diffs(n+1);
    for (long long i=1;i<n+1;i++){
        diffs[i]=diffs[i-1];
        if (vect[i]>vect[i-1]) diffs[i]-=s*(vect[i]-vect[i-1]);
        else diffs[i]+=t*(vect[i-1]-vect[i]);
    }
    for (long long qe=0;qe<q;qe++){
        long long l, r, x;
        cin>>l>>r>>x;
        for (long long i=l;i<=r;i++){
            vect[i]+=x;
            diffs[i]=diffs[i-1];
            if (vect[i]>vect[i-1]) diffs[i]-=s*(vect[i]-vect[i-1]);
            else diffs[i]+=t*(vect[i-1]-vect[i]);
        }
        for (long long i=r+1;i<n+1;i++){
            diffs[i]=diffs[i-1];
            if (vect[i]>vect[i-1]) diffs[i]-=s*(vect[i]-vect[i-1]);
            else diffs[i]+=t*(vect[i-1]-vect[i]);
        }
        cout<<diffs[n]<<'\n';
    }
    return 0;
}

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