算法竞赛入门经典 第三章 uVA455 - Periodic Strings

Periodic Strings
A character string is said to have period k if it can be formed by concatenating one or more repetitions of another string of length k. For example, the string "abcabcabcabc" has period 3, since it is formed by 4 repetitions of the string "abc". It also has periods 6 (two repetitions of "abcabc") and 12 (one repetition of "abcabcabcabc").

Write a program to read a character string and determine its smallest period.

Input

The first line oif the input file will contain a single integer N indicating how many test case that your program will test followed by a blank line. Each test case will contain a single character string of up to 80 non-blank characters. Two consecutive input will separated by a blank line.

Output

An integer denoting the smallest period of the input string for each input. Two consecutive output are separated by a blank line.

Sample Input

1

HoHoHo
Sample Output

2

#include<cstdio>#include<iostream>#include<cstring>using namespace std;int main(){int n;while (scanf("%d", &n) != EOF){char str[1000];for (int i = 0; i < n; i++){scanf("%s", str);int len = strlen(str);for (int j = 1, k; j <= len; j++){if (len%j == 0){for (k = j; k < len; k++){if (str[k] != str[k%j])break;}if (k == len){printf("%d\n", j);break;}}}if (i != n - 1)printf("\n");}}return 0;}