Submission #287878

#	Time	Username	Problem	Language	Result	Execution time	Memory
287878		Bill_00	Boxes with souvenirs (IOI15_boxes)	C++14	Compilation error	0 ms	0 KiB

boxes

#include "boxes.h"
#include <bits/stdc++.h>
using namespace std;
long long pre[10000001],suf[10000001],p[10000001];
long long delivery(int n, int k, int l, int o[]){
	for(int i=0;i<n;i++){
		p[i+1]=o[i];
	}
	sort(a+1,a+n+1);
	for(int i=1;i<=k;i++){
		pre[i]=2*p[i];
	}
	pre[0]=0,suf[n+1]=0;
	for(int i=k+1;i<=n;i++){
		pre[i]=pre[i-k]+2*p[i];
	}
	for(int i=1;i<=k;i++){
		suf[n+1-i]=2*(l-p[n+1-i]);
	}
	for(int i=k+1;i<=n;i++){
		suf[n+1-i]=suf[n+1-i+k]+2*(l-p[n+1-i]);
	}
	long long ans=1e18;
	for(int i=0;i<=n;i++){
		ans=min(ans,pre[i]+suf[i+1]);
	}
	for(int i=0;i<=n-k;i++){
		ans=min(ans,pre[i]+suf[i+k+1]+l);
	}
    return ans;
}

Compilation message (stderr)

boxes.cpp: In function 'long long int delivery(int, int, int, int*)':
boxes.cpp:9:7: error: 'a' was not declared in this scope
    9 |  sort(a+1,a+n+1);
      |       ^