85 lines
2.3 KiB
C
85 lines
2.3 KiB
C
#include <time.h>
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#include <stdlib.h>
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#include <stdio.h>
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const int rolls = 40000000;
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const int GO = 0, JAIL = 10, G2J = 30; // GO/JAIL
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const int CC1 = 2, CC2 = 17, CC3 = 33; // Community Chest
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const int CH1 = 7, CH2 = 22, CH3 = 36; // Chance
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const int R1 = 5, R2 = 15, R3 = 25; // Railway
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const int U1 = 12, U2 = 28; // Utilities
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const int C1 = 11, E3 = 24, H2 = 39; // other
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int freq[40] = {0};
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int doubleRolls = 0, position = 0;
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int cci = 0, chi = 0;
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int chance() {
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chi = (chi + 1) % 16;
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switch (chi) {
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case 1: return GO;
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case 2: return JAIL;
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case 3: return C1;
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case 4: return E3;
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case 5: return H2;
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case 6: return R1;
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case 7:
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case 8:
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if (position == CH1) return R2;
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if (position == CH2) return R3;
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return R1;
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case 9:
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return (position == CH2) ? U2 : U1;
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case 10: position -= 3;
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default: return position;
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}
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}
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int communityChest() {
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cci = (cci + 1) % 16;
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switch (cci) {
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case 1: return GO;
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case 2: return JAIL;
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default: return position;
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}
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}
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int main(void) {
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srand(time(NULL));
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for (int i = 0; i < rolls; i++) {
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int die1 = (rand() % 4) + 1;
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int die2 = (rand() % 4) + 1;
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position = (position + die1 + die2) % 40;
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if (die1 == die2) {
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if (++doubleRolls == 3) {
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doubleRolls = 0;
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position = JAIL;
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}
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} else {
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doubleRolls = 0;
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}
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if (position == G2J) {
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position = JAIL;
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}
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if (position == CH1 || position == CH2 || position == CH3) {
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position = chance();
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}
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if (position == CC1 || position == CC2 || position == CC3) {
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position = communityChest();
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}
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freq[position]++;
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}
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for (int i = 1; i <= 3; i++) {
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int topSquare = 0, topValue = 0;
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for (int j = 0; j < 40; j++) {
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if (freq[j] > topValue) {
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topSquare = j;
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topValue = freq[j];
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}
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}
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freq[topSquare] = 0;
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printf("#%d: %02d @ %f%%\n", i, topSquare, (double) topValue / rolls * 100);
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}
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} |