1140:0 starting point algorithm 47--averaging

1140:0 starting point algorithm 47--averaging time limit:1 Sec Memory limit:64 MB 64bit IO Format:%lld
submitted:1408 accepted:873
[Submit] [Status] [Web Board] Description

Enter some integers, averaging

Input

Multiple sets of test data
First enter 1 integer n to indicate the number of test groups
Then enter 1 integer m for each line, and then enter M integers

Output

For each set of test data output 1 rows, the content is an average of M integers, leaving 2 decimal places

Sample Input

22 1 25 3 4 6 9 3

Sample Output

1.505.00

Source

0 Starting point Learning algorithm

1#include <stdio.h>2 intMain () {3     intN;4scanf"%d",&n);5      for(intI=1; i<=n;i++){6         intm,s=0;7scanf"%d",&m);8          for(intj=1; j<=m;j++){9             intK;Tenscanf"%d",&k); Ones+=K; A         } -printf"%.2f\n", s*1.0/m); -     } the      -     return 0; -}

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1140:0 starting point algorithm 47--averaging