为什么输出只有better啊

wuxiangtianbei @ 2022-11-30 14:41:54

#include<stdio.h>
int main()
{
int i,j;
double n,a,b;
double x,y;
int c[20];
int d[20];
scanf("%lf",&n);
scanf("%lf%lf",&a,&b);
x=b/a;
for(i=1;i<n;i++) 
{scanf("%d%d",&c[i],&d[i]);
}
for(j=1;j<n;j++)
{
y=d[j]/c[j];
if(y-x<0.05)printf("better\n");
else if(x-y<0.05)printf("worse\n");
else if((x-y)>=0.05&&(y-x)<0.05)printf("same\n");
}
}

by jason_sun @ 2022-11-30 15:58:25

#include<stdio.h>
int main()
{
    int i,j;
    double n,a,b;
    double x,y;
    int c[20];
    int d[20];
    scanf("%lf",&n);
    scanf("%lf%lf",&a,&b);
    x=b/a;
    for(i=1;i<n;i++) 
    {scanf("%d%d",&c[i],&d[i]);
    }
    for(j=1;j<n;j++)
    {
        y=1.0*d[j]/c[j];
        if(y-x>0.05)printf("better\n");
        else if(x-y>0.05)printf("worse\n");
        else printf("same\n");
    }
}   

by jason_sun @ 2022-11-30 15:58:44

@wuxiangtianbei

by wuxiangtianbei @ 2022-11-30 20:42:36

@jason_sun 感谢，已改正，请问为什么y=1.0*d[j]/c[j]; 的1.0一定要放在最前面呢，我放在最后运行错误了

by jason_sun @ 2022-11-30 22:26:06

@wuxiangtianbei int转换成double