Submission #1156251

#	Time	Username	Problem	Language	Result	Execution time	Memory
1156251		soduynga45	Foehn Phenomena (JOI17_foehn_phenomena)	C++20	40 / 100	1098 ms	33784 KiB

foehn_phenomena

#include<bits/stdc++.h>
using namespace std;
#define ll long long
int main() {
    ios_base::sync_with_stdio(false); cin.tie(0); cout.tie(0);
    float db,y[100000],x[1000000];
    long long t,i,l,n,mod=1000000007,c,a,m,e,d,b,j,w[300005],f[300005],z[300005],g=0,q,p,r[300005],h[200005],o[1001][1001];
    map<ll,ll>blp;
    set<ll>st;
    string s,sa[200005],ta[200005],sn,sm,sk,k[200005],cr,sx,sy;
    pair<ll,ll>pr[30005];
    char ch[200005];
    vector<ll>ret;
    cin>>n>>m>>a>>b;
    for (i=0; i<=n; i++){
        cin>>z[i];
    }
    for (i=1; i<=m; i++){
        cin>>f[i]>>r[i]>>h[i];
    }
    for (i=1; i<=n; i++){
        if (z[i]>z[i-1]){
            w[i]=w[i-1]-a*(z[i]-z[i-1]);
        }
        else {
            w[i]=w[i-1]+b*(z[i-1]-z[i]);
        }
    }
    if (a==b){
        for (i=1; i<=m; i++){
            if (r[i]!=n){
                cout<<w[n]<<endl;
            }
            else {
                w[n]=w[n]-a*h[i];
                cout<<w[n]<<endl;
            }
        }
        return 0;
    }
    for (i=1; i<=m; i++){
        for (j=f[i]; j<=r[i]; j++){
            z[j]=z[j]+h[i];
        }
        for (j=1; j<=n; j++){
            if (z[j]>z[j-1]){
                w[j]=w[j-1]-a*(z[j]-z[j-1]);
            }
            else {
                w[j]=w[j-1]+b*(z[j-1]-z[j]);
            }
        }
        cout<<w[n]<<endl;
    }
}

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