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CF25B Phone numbers

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R40341264
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Baoshuo Ren 2020-10-23 16:22:43 +08:00 committed by Baoshuo Ren
parent 3ece123c57
commit f91f4de358
Signed by: baoshuo
GPG Key ID: 70F90A673FB1AB68
1 changed files with 20 additions and 0 deletions
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problem/CF25B/CF25B.cpp Normal file
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#include <bits/stdc++.h>
using namespace std;
int main() {
int n;
string s;
cin >> n >> s;
for (int i = 0; i < n; i++) {
cout << s[i];
if (i % 2 && n % 2 && i < n - 4 || i % 2 && !(n % 2) && i != n - 1) {
cout << '-';
}
if (i == n - 4 && n % 2) {
cout << '-' << s[n - 3] << s[n - 2] << s[n - 1];
break;
}
}
return 0;
}