poj.org Pro 1004

/* poj.org problem 1004 finacial management

author: bubble

date: 2013-7-15

*/

#include<stdio.h>int main(){    float a[12],m=0.0,n=0.0;    int i;    for(i=0;i<12;i++){        scanf("%f",&a[i]);        n=n+a[i];    }    m=n/12;    printf("$%.2f",m);    return 0;}