11 lines
220 B
C
11 lines
220 B
C
#include <math.h>
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#include <stdio.h>
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float f(int a, int b) { return sqrt(a * a + b * b); }
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int main() {
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int a, b, c, d;
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scanf("%d %d %d %d", &a, &b, &c, &d);
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printf("%.2f", f(a - c, b - d));
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return 0;
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} |