35 lines
620 B
C
35 lines
620 B
C
#include <stdio.h>
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#include <stdlib.h>
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#include <sys/time.h>
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double wtime();
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int getrand(int min, int max);
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void fill_rand(int *arr, int n);
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int main(void){
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int sn = 50000;
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int en = 1000000;
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int step = 50000;
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srand(123);
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FILE *f = fopen("res.dat", "w");
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}
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double wtime() {
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struct timeval t;
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gettimeofday(&t, NULL);
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return (double)t.tv_sec + (double)t.tv_usec * 1E-6;
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}
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int getrand(int min, int max) {
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return (double)rand() / (RAND_MAX + 1.0) * (max - min) + min;
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}
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void fill_rand(int *arr, int n) {
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for (int i = 0; i < n; i++)
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arr[i] = getrand(1, 1000001);
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}
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