#include#include int main() { double x1,y1,x2,y2; double q; while(scanf("%lf%lf%lf%lf",&x1,&y1,&x2,&y2) != EOF) { q=(x1-x2)*(x1-x2)+(y1-y2)*(y1-y2); printf("%.2lfn",sqrt(q)); } return 0; }
#include#include int main() { double x1,y1,x2,y2; double q; while(scanf("%lf%lf%lf%lf",&x1,&y1,&x2,&y2) != EOF) { q=(x1-x2)*(x1-x2)+(y1-y2)*(y1-y2); printf("%.2lfn",sqrt(q)); } return 0; }
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