#include <stdio.h> #include <ctype.h> char* s_gets(char* st, int n) { char* ret_val; int i = 0; ret_val = fgets(st, n, stdin); if (ret_val) { while (st[i] != '\n' && st[i] != '\0') i++; if (st[i] == '\n') st[i] = '\0'; ...