0_0_20072484_13758.cpp: In function 'int main()':
0_0_20072484_13758.cpp:5:46: error: 'scanf' was not declared in this scope
while(scanf("%lf%lf%lf%lf\n",&x1,&y1,&x2,&y2)!=EOF)
^
0_0_20072484_13758.cpp:5:49: error: 'EOF' was not declared in this scope
while(scanf("%lf%lf%lf%lf\n",&x1,&y1,&x2,&y2)!=EOF)
^
0_0_20072484_13758.cpp:8:14: error: 'sqrt' was not declared in this scope
s=sqrt(q);
^
0_0_20072484_13758.cpp:9:32: error: 'printf' was not declared in this scope
printf("%0.2f %0.2f\n",q,s);
^
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