找规律

#include <stdio.h>
#include <stdlib.h>

int main(int argc, char** argv) {
  char op;
  float g[12][12];
  scanf("%c", &op);
  for (int y = 0; y < 12; ++y)
    for (int x = 0; x < 12; ++x) scanf("%f", *(g + y) + x);

  int cnt = 0;
  float sum = 0.0;
  for (int y = 1; y <= 5; ++y)
    for (int x = 12 - y; x < 12; ++x)
      ++cnt, sum += *(*(g + y) + x);

  for (int y = 6; y <= 10; ++y)
    for (int x = y + 1; x < 12; ++x)
      ++cnt, sum += *(*(g + y) + x);

  if (op == 'S') printf("%.1f\n", sum);
  else printf("%.1f\n", sum / cnt);
  return 0;
}