Submission #999475

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Source Code Expand

#include<cstdio>
#include<cstring>
#include<cstdlib>
int xxx(int y, int z){
	int w;
	if (y < z){
		if (z%y == 0)return y;
		else {
			w = z / y;
			return xxx(y, z - (w*y));
		}
	}
	else if (z < y){
		if (y%z == 0)return z;
		else {
			w = y / z;
			return xxx(z, y - (w*z));
		}
	}
	else return y;
}
int main(void){
	int a,b,c,d;
	int x;
	int p, q;
	long long s;
	scanf("%d%d %d %d", &a,&b,&c,&d);
	p = c - a;
	q = d - b;
	if (p != 0 && q != 0){
		if (p < 0)p = -p;
		if (q < 0)q = -q;
		x = xxx(p, q);
		p = p / x;
		q = q / x;
		s = (p + q - 1)*x;
		printf("%lld\n", s);
	}
	else printf("0\n");


	return 0;
}

Submission Info

Compile Error

./Main.cpp: In function ‘int main()’:
./Main.cpp:27:34: 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