四舍五入
include
include
using namespace std;
int main()
{
int n,c;
cin>>n;
c=n%10;
if(c>=5)
cout<<n-c+10;
else if(c<5)
cout<<n-c;
return 0;
}
using namespace std;
int main()
{
int n,c;
cin>>n;
c=n%10;
if(c>=5)
cout<<n-c+10;
else if(c<5)
cout<<n-c;
return 0;
}
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