BC题目归纳

BC题目归纳

题目一：四舍五入

#include 
using namespace std;

int main() 
{
    float a;
    scanf("%f",&a);
    if(a>0)
        printf("%d",(int)(a+0.5));
    else
        printf("%d",(int)(a-0.5));
}
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题目二：出生日期的输入输出

#include 

int main() 
{
    int a,b,c;
    scanf("%4d%2d%2d",&a,&b,&c);
    printf("year=%d\nmonth=%02d\ndate=%02d",a,b,c);
    return 0;
}
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题目三:十六进制转十进制

#include 
//直接将十六进制数字赋值到a
int main() 
{
    int a=0XABCDEF;
    printf("%15d",a);
    return 0;
}
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