9 lines
211 B
C
9 lines
211 B
C
#include <math.h>
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#include <stdio.h>
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#define square(x) ((x) * (x))
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int main() {
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int x1, y1, x2, y2;
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scanf("%d %d %d %d", &x1, &y1, &x2, &y2);
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printf("%f", sqrt(square(x2 - x1) + square(y2 - y1)));
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} |