Submission #781956

#	Time	Username	Problem	Language	Result	Execution time	Memory
781956		Lyrically	Boxes with souvenirs (IOI15_boxes)	C++17	Compilation error	0 ms	0 KiB

boxes

#include<bits/stdc++.h>
using namespace std;
#define pii pair<int,int>
#define pb push_back
#define rep(i,n) for(int i=0;i<n;i++)
#define rep1(i,n) for(int i=1;i<=n;i++)
int read(){int x;scanf("%d",&x);return x;}
void print(int x){printf("%d\n",x);}
const int mod=1000000007;
int delivery(int n,int k,int l,int p[])
{
	int res=0;
	for(int i=0;i<n;i+=k)
	{
		vector<int> v;
		for(int j=i;j<=min(i+k-1,n-1);j++){v.pb(p[j]);}
		int tmp=l;
		int ldis=0,rdis=0;
		for(auto x:v)
		{
			if(x<=l-x){ldis=max(ldis,x);}
			else{rdis=max(rdis,l-x);}
		}
		tmp=min(tmp,2*(ldis+rdis));
		res+=tmp;
	}
	return res;
}
signed main()
{
	int N=read(),K=read(),L=read();
	int X[N];
	rep(i,N){int val=read();X[i]=val;}
	cout<<delivery(N,K,L,X)<<endl;
}

Compilation message (stderr)

boxes.cpp: In function 'int read()':
boxes.cpp:7:23: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
    7 | int read(){int x;scanf("%d",&x);return x;}
      |                  ~~~~~^~~~~~~~~
/usr/bin/ld: /tmp/ccCDzExP.o: in function `main':
grader.c:(.text.startup+0x0): multiple definition of `main'; /tmp/ccyPfIOR.o:boxes.cpp:(.text.startup+0x0): first defined here
collect2: error: ld returned 1 exit status