题干

c++实现

#include <stdio.h>
#include <string>
#include <map>

using namespace std;

int main() {
    char strArr[100];
    while (scanf("%s", strArr) != EOF) {
        string str = strArr;
        map<string, int> subCount;
        for (int i = 0; i < str.size(); ++i) {
            for (int j = 1; j <= str.size() - i; ++j) {
                // i是子串的起始下标，j是子串长度
                string sub = str.substr(i, j);
                ++subCount[sub];
            }
        }
        //subCount.erase(str);
        map<string, int>::iterator it;
        for (it = subCount.begin(); it != subCount.end(); ++it) {
            if (it->second > 1) {
                printf("%s %d\n", it->first.c_str(), it->second);
            }
        }
    }
    return 0;
}