题解 | #实现四舍五入#
实现四舍五入
https://www.nowcoder.com/practice/020a0cf673174d5795d97ae79cff59a0
用比大小和if语句实现四舍五入，注意输入值为负值时的情况
#我想找个女朋友#
#include<stdio.h>
int main()
{
float a;
int n;
scanf("%f",&a);
n = (int)a;
if(a>=0){
if(a-1<n-0.5)
{
n = (int)a;
printf("%d",n);
}
else if(a-1>=n-0.5)
{
n = (int)a+1;
printf("%d",n);
}
}
if (a<0)
{
if(a+1>=n+0.5)
{
n = (int)a;
printf("%d",n);
}
else if(a+1<n+0.5)
{
n = (int)a-1;
printf("%d",n);
}
}
return 0;
}
#我想找个女朋友#
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