PKU 1004
#include <stdio.h> int main() { double sum = 0; for ( int i=0; i<12; i++ ) { double m; scanf( "%lf", &m ); sum += m; } printf( "$%.2f\n", sum / 12 ); return 0; }
#include <stdio.h> int main() { double sum = 0; for ( int i=0; i<12; i++ ) { double m; scanf( "%lf", &m ); sum += m; } printf( "$%.2f\n", sum / 12 ); return 0; }