Submission #279334

#	Time	Username	Problem	Language	Result	Execution time	Memory
279334		1723191831	Aliens (IOI16_aliens)	C++14	Compilation error	0 ms	0 KiB

aliens

#include<bits/stdc++.h>
using namespace std;
const int maxn=100005;
const int maxm=1000005;
int r[maxn],c[maxn];
int n,m,k;
int tag[105][105];
long long int ans;
int main(){
	scanf("%d%d%d",&n,&m,&k);
	for(int i=0;i<n;i++)
		scanf("%d%d",&r[i],&c[i]);
	for(int i=0;i<k;i++)
	{
		for(int j=min(r[i],c[i]);max(r[i],c[i]);j++)
			for(int jj=min(r[i],c[i]);jj<=c[i];jj++)
				tag[j][jj]=1;		
	}
	for(int i=0;i<m;i++)
	{
		for(int j=0;j<m;j++)
			if(tag[i][j])ans++;	
	}	
	cout<<ans;
	return 0;
}

Compilation message (stderr)

aliens.cpp: In function 'int main()':
aliens.cpp:10:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   10 |  scanf("%d%d%d",&n,&m,&k);
      |  ~~~~~^~~~~~~~~~~~~~~~~~~
aliens.cpp:12:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   12 |   scanf("%d%d",&r[i],&c[i]);
      |   ~~~~~^~~~~~~~~~~~~~~~~~~~
/tmp/ccJtylrq.o: In function `main':
grader.cpp:(.text.startup+0x0): multiple definition of `main'
/tmp/ccLI3HT6.o:aliens.cpp:(.text.startup+0x0): first defined here
/tmp/ccJtylrq.o: In function `main':
grader.cpp:(.text.startup+0xe1): 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