https://ac.nowcoder.com/acm/contest/15593
A.
思路:
double分开小数和整数,然后特判小数
因为数据范围好大所以开了long double(竟然没有long long double)
code
#include
using namespace std;
int main()
{
long double a;
cin>>a;
long double in = a-(long long )a;
if(in>0.5)
cout
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