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Lagx

pura vendisuone

Oct 31st, 2017
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C 0.53 KB | None | 0 0
  1. #include  <stdio.h>
  2. #include  <stdlib.h>
  3.  
  4. int main()
  5. {
  6.     FILE *entrada;
  7.     FILE *salida;
  8.    
  9.     entrada = fopen("entrada.txt","r");
  10.     if(entrada == NULL)
  11.     {
  12.         printf("ERROR");
  13.         return 0;
  14.     }
  15.    
  16.     salida = fopen("copia.txt","W");
  17.     if(salida == NULL)
  18.     {
  19.         fclose(entrada);
  20.         printf("ERROR");
  21.         return 0;
  22.     }
  23.    
  24.     char caracter;
  25.     while((caracter = fgetc(entrada)) != EOF)
  26.     {
  27.         fputc(toupper(caracter),salida);
  28.     }
  29.    
  30.     fclose(entrada);
  31.     fclose(salida);
  32.    
  33.     return 0;
  34. }
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