39 lines
723 B
C
39 lines
723 B
C
#include <stdio.h>
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#include <stdlib.h>
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#include <math.h>
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#include <time.h>
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double range_rand(double from, double to)
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{
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return (double)rand() / RAND_MAX * (to - from) + from;
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}
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void help(const char* name) {
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printf(
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"Generates given number of records.\n"
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"Usage:\n"
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"\t%s <min> <max> <count>\n"
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,
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name
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);
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}
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int main(int argc, const char* argv[])
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{
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if (argc < 4) {
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help(argv[0]);
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return -1;
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}
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double from = atof(argv[1]);
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double to = atof(argv[2]);
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int count = atoi(argv[3]);
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srand(time(0));
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while (count--) {
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printf("%lf %lf\n", range_rand(from, to), range_rand(from, to));
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}
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return EXIT_SUCCESS;
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}
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