c - Warning: Comparison between pointer and integer? Logic Errors? -

i trying write program validates area code using c. user enters area code , program checks if valid. doing array. when run program , enter valid area code return "invalid area code." think there problem logic.

also when compiling warning: comparison between pointer , integer.

how fix this?

here code:

#include <stdio.h>  int main() {     int codetocheck[4] = {303, 720, 970, 719};     int codetofind = 0;     int = 0;      printf("enter area code validate: ");     scanf("%d", &codetofind);      for(i = 1; <= 4; i++)     {         codetocheck[i] = codetofind;         if(codetofind == codetocheck)             break;       }      if(codetofind == codetocheck)         printf("\nvalid area code in colorado!");     else         printf("\ninvalid area code in colorado");      return 0; } 

the problem if(codetofind == codetocheck) statement, here checking value of integer base address of array.

if(codetofind == codetocheck) //correct comparison of array elements codetofind == codetocheck[i] 

also core logic not correct, in code posted condition inside if true because in statement above if assigning codetocheck[i] codetofind value, , in next line comparing same values!!

you can correct code correct output

 int flag = 0;  for(i = 0; <= 4; i++)  //you should correct line, array indices starts 0     {         if(codetofind[i] == codetocheck)          {             flag = 1;             break;          }     }      if(flag)         printf("\nvalid area code in colorado!");     else         printf("\ninvalid area code in colorado");