Submission #797087

#	Time	Username	Problem	Language	Result	Execution time	Memory
797087		Shithila	Aliens (IOI16_aliens)	C++14	Compilation error	0 ms	0 KiB

aliens

#include<bits/stdc++.h>
using namespace std;
const int mod = 1e9;
int main()
{
	int n;
	int m;
	cin>>n>>m;
	int arr[n];
	int blocksize=350;
	vector<int> cos((n/blocksize)+1);
	vector<multiset<int> > chek((n/blocksize)+1);
	for(int ll=0;ll<n;ll++)
	{
		cin>>arr[ll];
		chek[ll/blocksize].insert(arr[ll]);
	}
	for(int ll=0;ll<m;ll++)
	{
		char com;
		cin>>com;
		
		if(com=='+')
		{
			int l;
			int r;
			int x;
			cin>>l>>r>>x;
			l--;
			r--;
			for(int i=l;i<=r;)
			{
				if(i%blocksize==0 && i+blocksize<r)
				{
					cos[i/blocksize]+=x;
					i+=blocksize;
				}
				else
				{
					chek[i/blocksize].erase(chek[i/blocksize].find(arr[i]));
					arr[i]=arr[i]+x;
					chek[i/blocksize].insert(arr[i]);
					i++;
				}
			}
		}
		else
		{
				int l;
			int r;
			int y;
			cin>>l>>r>>y;
			l--;
			r--;
			bool found=false;
			for(int i=l;i<=r;)
			{
				if(i%blocksize==0 && i+blocksize<r)
				{
					if(chek[i/blocksize].find(y-cos[i/blocksize])!=chek[i/blocksize].end())
					{
						found=true;
					}
					i+=blocksize;
				}
				else
				{
					if(arr[i]+cos[i/blocksize]==y)
					{
						found=true;
					}
					i++;
				}
			}
			if(found==true)
			{
				cout<<"YES"<<endl;
			}
			else cout<<"NO"<<endl;
		}
	}
}

Compilation message (stderr)

/usr/bin/ld: /tmp/cc0t3XFq.o: in function `main':
grader.cpp:(.text.startup+0x0): multiple definition of `main'; /tmp/cco5jPQo.o:aliens.cpp:(.text.startup+0x0): first defined here
/usr/bin/ld: /tmp/cc0t3XFq.o: in function `main':
grader.cpp:(.text.startup+0xf0): undefined reference to `take_photos(int, int, int, std::vector<int, std::allocator<int> >, std::vector<int, std::allocator<int> >)'
collect2: error: ld returned 1 exit status