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  1. #include <stdio.h>
  2. #include <string.h>
  3.  
  4. int main() {
  5.     char currency[10];
  6.     double rate = 0.0078;
  7.     double kes = 0.0, usd = 0.0;
  8.  
  9.     printf("Choose currency ($ or KES):\n");
  10.     scanf("%s", currency);
  11.  
  12.     if (strcmp(currency, "KES") == 0 || strcmp(currency, "kes") == 0) {
  13.         printf("Enter amount in KES:\n");
  14.         scanf("%lf", &kes);
  15.         usd = kes * rate;
  16.         printf("%.2lf KES = %.2lf USD\n", kes, usd);
  17.     } else if (strcmp(currency, "$") == 0) {
  18.         printf("Enter amount in USD:\n");
  19.         scanf("%lf", &usd);
  20.         kes = usd / rate;
  21.         printf("%.2lf USD = %.2lf KES\n", usd, kes);
  22.     } else {
  23.         printf("Invalid currency\n");
  24.     }
  25.  
  26.     return 0;
  27. }
  28.  
Success #stdin #stdout 0.01s 5296KB
comments (?)
stdin
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Standard input is empty
stdout
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Choose currency ($ or KES):
Invalid currency
https://ideone.com/Grjp9h
language:
C (gcc 8.3)
created:
3 hours ago
visibility:
public

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