14 lines
275 B
C
14 lines
275 B
C
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#include<stdio.h>
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#include<math.h>
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float dist(float x1, float y1, float x2, float y2){
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return sqrt((x1-x2)*(x1-x2)+(y1-y2)*(y1-y2));
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}
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int main(){
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float x1,y1,x2,y2;
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scanf("%f %f %f %f",&x1,&y1,&x2,&y2);
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printf("%.2f\n", dist(x1,y1,x2,y2));
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return 0;
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}
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