Codeforces898A-Rounding
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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 or10.
题解:四舍五入,直接求解。
Code:
#include<bits/stdc++.h>using namespace std;int main(){int n;scanf("%d",&n);int k=n%10;if(k<=5)printf("%d",n-k);else printf("%d",n+10-k);return 0;}
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