tema dragos pb3

#include <iostream>
#include <cstring>
using namespace std;

void solve(char *s) {
    char aux[102] = {};
    char arr[102][102] = {};
    int arrLen = 0;

    {
        char *p = strtok(s, " ");
        while (p) {
            strcpy(arr[arrLen++], p);
            p = strtok(NULL, " ");
        }
    }

    strcat(aux, arr[0]);
    strcat(aux, " ");
    for (int i = 1; i < arrLen; i++) {
        int n1 = strlen(arr[i - 1]), n2 = strlen(arr[i]);
        if (arr[i - 1][n1 - 1] == arr[i][n2 - 1]) {
            strcat(aux, "succes");
            strcat(aux, " ");
        }
        strcat(aux, arr[i]);
        strcat(aux, " ");
    }//*/
   strcpy(s, aux);
}

int main() {
    char s[102];
    gets(s);
    solve(s);
    puts(s);
    return 0;
}