Submission #22973

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Source Code Expand

#include<stdio.h>
#include<vector>
#include<algorithm>
#include<math.h>
using namespace std;
typedef pair<int,int>pii;
int main()
{
	int num;
	scanf("%d",&num);
	vector<pii>vec;
	for(int i=0;i<num;i++)
	{
		int za,zb;
		scanf("%d%d",&za,&zb);
		vec.push_back(make_pair(za,zb));
	}
	int maxi=0;
	for(int i=0;i<num;i++)
	{
		for(int j=0;j<num;j++)
		{
			maxi=max(maxi,(vec[i].first-vec[j].first)*(vec[i].first-vec[j].first)+(vec[i].second-vec[j].second)*(vec[i].second-vec[j].second));
		}
	}
	printf("%lf\n",sqrt(double(maxi)));
}

Submission Info

Compile Error

./Main.cpp: In function ‘int main()’:
./Main.cpp:10:18: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
./Main.cpp:15:24: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]

Judge Result