fruits = ["apple", "banana", "cherry", "kiwi", "mango"]
newlist = [x for x in fruits if "a" in x]
print(newlist)

#include <iostream>
#include <vector>
#include <algorithm>

int main() {
 std::vector<std::string> fruits = {"apple", "banana", "cherry", "kiwi", "mango"};
 std::vector<std::string> newlist;

 for (const auto &x : fruits) {
   if (x.find("a") != std::string::npos) {
     newlist.push_back(x);
   }
 }

 for (const auto &x : newlist) {
   std::cout << x << " ";
 }

 return 0;
}

DIM FRUITS$(4)
FRUITS$(0) = "apple"
FRUITS$(1) = "banana"
FRUITS$(2) = "cherry"
FRUITS$(3) = "kiwi"
FRUITS$(4) = "mango"
DIM NEWLIST$(4)
NEWLISTL = 0
FOR X = 0 TO 4
 IF INSTR(FRUITS$(X),"a") <> 0 THEN
   NEWLISTL = NEWLISTL + 1
   NEWLIST$(NEWLISTL) = FRUITS$(X)
 END IF
NEXT X
FOR X = 1 TO NEWLISTL
 PRINT NEWLIST$(X)
NEXT X

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

char    *fruits[] = {"apple", "banana", "cherry", "kiwi", "mango"};
char    *newlist[5];

int main(void)
{
       int     i, n = 0;

       for (i = 0; i < 5; i++)
               if (strchr(fruits[i], 'a'))
                       newlist[n++] = fruits[i];
       for (i = 0; i < n; i++)
               puts(newlist[i]);
       return 0;
}