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- #include <bits/stdc++.h>
- using namespace std;
- int main ()
- {
- double M[12][12], soma=0, media=0, m=0;
- char O;
- int i,j;
- scanf(" %c",&O);
- for(i=0 ; i<12 ; i++)
- {
- for(j=0 ; j<12 ; j++)
- {
- scanf("%lf",&M[i][j]);
- }
- }
- for(i=1 ; i<=5 ; i++)
- {
- for(j=7; j<12 ; j++)
- {
- if(i+j>=12)
- {
- soma+=M[i][j];
- m++;
- }
- }
- }
- for(i=6 ; i<11 ; i++)
- {
- for(j=7 ; j<12 ; j++)
- {
- if(j-i>0)
- {
- soma+=M[i][j];
- m++;
- }
- }
- }
- if(O=='S'){
- printf("%.1lf\n",soma);
- }
- if(O=='M'){
- media = soma/m;
- printf("%.1lf\n",media);
- }
- return 0;
- }
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