0_0_14709487_8321.cpp: In function 'int main()':
0_0_14709487_8321.cpp:32:17: error: 'M_PI' was not declared in this scope
gm=(M_PI-p)/2;//cout<<gm<<endl;
^
0_0_14709487_8321.cpp:42:46: error: 'M_PI' was not declared in this scope
printf("%.5lf %.5lf %.5lf\n",m/2,n/2,M_PI);
^
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