p6-ejer1

#include <stdio.h>
#include <stdlib.h>
#define N 13

int main(){
    FILE *f_in, *f_out;
    int mes[N], m, i;
    float temp[N], t;

    f_in=fopen("Temperaturas_2010.txt","r");
    f_out=fopen("TempMedias_2010.txt","a");

    if(f_in==0)
       printf("ERROR: archivo Temperaturas_2010.txt no encontrado");
    else{

       for(i=1;i<N;i++){
          temp[i]=0.0;
          mes[i]=0;
       }

       while (fscanf(f_in,"%d %f",&m,&t) != EOF){
          temp[m]+=t;
          mes[m]++;
       }

       for(i=1;i<N;i++){
          fprintf(f_out,"Temperatura Media: %d %f\n",i,temp[i]/mes[i]);
       }

    }
    system("PAUSE");
    return 0;
}