題目:
https://onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=21&page=show_problem&problem=1870
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| #include <iostream>
#include <cmath>
using namespace std;
int main(){
string str;
while(cin >> str){
if(str == "0") break;
int odd = 0, even = 0;
for(int i=0; i<str.size(); ++i){
if(i%2 == 1) odd += str[i]-48;
else even += str[i]-48;
}
int diff = abs(odd - even);
if(diff % 11 == 0) cout << str << " is a multiple of 11.\n";
else cout << str << " is not a multiple of 11.\n";
}
return 0;
}
|
