Submission #1358111

#	Time	Username	Problem	Language	Result	Execution time	Memory
1358111		kmath628	정전 (OJUZ10_blackout)	C++20	100 / 100	17 ms	996 KiB

blackout

#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
int main(){
    int n,l,i;
    ll s=0,mx=-2e9;
    scanf("%d %d",&n,&l);
    vector<int> a(n);
    for(i=0;i<n;i++) scanf("%d",&a[i]);
    sort(a.begin(),a.end());
    for(i=0;i<n-1;i++){
        mx=max(mx,(ll)a[i+1]-l);
        s+=max(a[i]-mx+l,0ll);
        mx=max(mx,(ll)a[i]+l);
    }
    printf("%lld\n",s);
}

Compilation message (stderr)

blackout.cpp: In function 'int main()':
blackout.cpp:7:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
    7 |     scanf("%d %d",&n,&l);
      |     ~~~~~^~~~~~~~~~~~~~~
blackout.cpp:9:27: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
    9 |     for(i=0;i<n;i++) scanf("%d",&a[i]);
      |                      ~~~~~^~~~~~~~~~~~

• Subtask 1: 10 / 10
• Subtask 2: 20 / 20
• Subtask 3: 30 / 30
• Subtask 4: 40 / 40