37 lines
559 B
C
37 lines
559 B
C
#include <stdio.h>
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#include <stdlib.h>
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#include <time.h>
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#include <math.h>
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#include <float.h>
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float pi(float n) {
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int n_circle = 0;
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int n_total = 0;
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srand(time(NULL));
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for(float i = 0; i < n; i++)
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{
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int x = rand() % 2;
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int y = rand() % 2;
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int distance = pow(x, 2) + pow(y, 2);
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if(distance <= 1) {
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n_circle += 1;
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}
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n_total += 1;
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}
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printf("n_circle = %d\nn_total = %d\n", n_circle, n_total);
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return 4 * (float) n_circle / (float) n_total;
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}
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int main() {
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float pi_ans = pi(pow(10, 7));
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printf("pi = %f\n", pi_ans);
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return 0;
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}
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