A. Rounding
time limit per test
1 secondmemory limit per test
256 megabytesinput
standard inputoutput
standard outputVasya has a non-negative integer n. He wants to round it to nearest integer, which ends up with 0. If n already ends up with 0, Vasya considers it already rounded.
For example, if n = 4722 answer is 4720. If n = 5 Vasya can round it to 0 or to 10. Both ways are correct.
For given n find out to which integer will Vasya round it.
Input
The first line contains single integer n (0 ≤ n ≤ 109) — number that Vasya has.
Output
Print result of rounding n. Pay attention that in some cases answer isn't unique. In that case print any correct answer.
Examples
input
5
output
0
input
113
output
110
input
1000000000
output
1000000000
input
5432359
output
5432360
Note
In the first example n = 5. Nearest integers, that ends up with zero are 0 and 10. Any of these answers is correct, so you can print 0 or 10.
代码：
1 #include<iostream> 2 #include<cstring> 3 #include<cstdio> 4 #include<cmath> 5 #include<algorithm> 6 using namespace std; 7 typedef long long ll; 8 int main(){ 9 ll n; 10 while(~scanf("%lld",&n)){ 11 ll temp=n%10; 12 if(temp>5)n=n-temp+10; 13 else n=n-temp; 14 printf("%lld ",n); 15 } 16 return 0;