Submission #998960

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Source Code Expand

#include <stdio.h>

int abs(int a)
{
	return a < 0 ? -a : a;
}

int gcd(int a, int b)
{
	return b ? gcd(b,a%b) : a;
}

int main()
{
	int a,b,c,d;
	scanf ("%d %d %d %d",&a,&b,&c,&d);

	int ans = abs(a-c) + abs(b-d) - gcd(abs(a-c),abs(b-d));

	printf ("%d\n",ans);
	return 0;
}

Submission Info

Compile Error

./Main.cpp: In function ‘int main()’:
./Main.cpp:16:35: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
  scanf ("%d %d %d %d",&a,&b,&c,&d);
                                   ^

Judge Result