Submission #2898111

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Source Code Expand

#include<bits/stdc++.h>
using namespace std;
#define rp(i,n) for(int i=0;i<n;i++)
#define rep(i,m,n) for(int i=m;i<=n;i++)
#define lrp(i,n) for(long long i=0;i<n;i++)
#define lrep(i,m,n) for(long long i=m;i<=n;i++)
#define ll long long
#define sort(a) sort(a.begin(),a.end())
#define reverse(a) reverse(a.begin(),a.end())
#define vi vector<int>
#define vl vector<long long>
#define pb push_back
#define abs(a,b) (a-b>0?a-b:b-a)


int main(){
    int n,T;
    cin >> n >> T;
    vi t(n);
    rp(i,n){
        cin >> t[i];
    }
    int ans=0;
    if(n==1){
        cout << T << endl;
    }else{
        rp(i,n-1){
            if(t[i+1]-t[i]<=T){
                ans += t[i+1]-t[i];
            }else{
                ans += 4;
            }
        }
        ans += T;
        cout << ans << endl;
    }
}

Submission Info

Judge Result