func_code_string: #include <bits/stdc++.h>   using namespace std;   const int MAXN = 1e5 + 5;   char str[MAXN];   class Value {    public:     char c1, c2, last_c1, last_c2;     int pos, l1, sz;     Value() {       c1 = 0;       c2 = 0;       pos = 0;       l1 = 0;       last_c1 = 0;       last_c2 = 0;     }     void push_front(char c) {       if (c == c1) {         l1++;       } else {         c2 = c1;         c1 = c;         l1 = 1;       }       if (last_c2 == 0) {         last_c2 = c;       } else if (last_c1 == 0) {         last_c1 = c;       }       sz++;     }     bool operator<(const Value &value) const {       if (c1 != value.c1) {         return c1 < value.c1;       }       char cl = c1, cr = c1;       if (l1 < value.l1) {         cl = c2;       } else if (value.l1 < l1) {         cr = value.c2;       }       return cl < cr;     }   } f[MAXN];   void print(int idx, int cnt) {     for (int i = 0; i < cnt; i++) {       putchar(f[idx].c1);       idx = f[idx].pos + 1;     }   }   int main() {     scanf( %s , str);     int len = strlen(str);     f[len].pos = len;     for (int i = len - 1; i >= 0; i--) {       f[i] = f[i + 1];       f[i].push_front(str[i]);       f[i].pos = i;       if (i + 1 < len && str[i] == str[i + 1]) {         f[i] = min(f[i], f[i + 2]);       }     }     for (int i = 0; i < len; i++) {       printf( %d  , f[i].sz);       if (f[i].sz <= 10) {         print(i, f[i].sz);         putchar(  n );       } else {         print(i, 5);         printf( ...%c%c n , f[i].last_c1, f[i].last_c2);       }     }     return 0;   }   