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  1. #include <stdio.h>
  2. #include <stdlib.h>
  3. #include <time.h>
  4.  
  5. int randto(int n) {
  6.     int r, maxr = (RAND_MAX / n) * n;
  7.     do r = rand(); while (r >= maxr);
  8.     return r % n;
  9. }
  10.  
  11. int main(void) {
  12.     srand((unsigned)time(0));
  13.     int len = 0;
  14.     int count[1000] = {0};
  15.     for (int i = 0; i < 1000000; i++) {
  16.         int dealer = randto(13);
  17.         int player = randto(13);
  18.         if (player == dealer) {
  19.             continue;
  20.         }
  21.         if (player > 6) {
  22.             if (player > dealer) {
  23.                 len++;
  24.             } else {
  25.                 count[len]++;
  26.                 len = 0;
  27.             }
  28.         } else {
  29.             if (player < 6) {
  30.                 if (player < dealer) {
  31.                     len++;
  32.                 } else {
  33.                     count[len]++;
  34.                     len = 0;
  35.                 }
  36.             } else {
  37.             }
  38.         }
  39.     }
  40.     int countlow = 0;
  41.     int counthigh = 0;
  42.     for (int i = 0; i < 25; i++) countlow += count[i];
  43.     for (int i = 25; i < 1000; i++) counthigh += count[i];
  44.     printf("losses: %d; wins: %d. Percentage %.2f\n", countlow, counthigh, (counthigh * 100.0)/countlow);
  45.     return 0;
  46. }
  47.  
Success #stdin #stdout 0.04s 5476KB
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stdin
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Standard input is empty
stdout
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losses: 176942; wins: 502. Percentage 0.28
https://ideone.com/r7Jqhn
language:
C (gcc 8.3)
created:
3 years ago
visibility:
secret

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