View Compilation Error

0_0_25724743_22590.cpp:59:14: error: redefinition of 'const double pi'
 const double pi=3.14159265358;
              ^
0_0_25724743_22590.cpp:2:14: note: 'const double pi' previously defined here
 const double pi=3.14159265358;
              ^
0_0_25724743_22590.cpp:61:5: error: redefinition of 'int r'
 int r;
     ^
0_0_25724743_22590.cpp:4:5: note: 'int r' previously declared here
 int r;
     ^
0_0_25724743_22590.cpp: In function 'double chou(int, int, int)':
0_0_25724743_22590.cpp:63:8: error: redefinition of 'double chou(int, int, int)'
 double chou(int x,int y,int r1)
        ^
0_0_25724743_22590.cpp:6:8: note: 'double chou(int, int, int)' previously defined here
 double chou(int x,int y,int r1)
        ^
0_0_25724743_22590.cpp: In function 'int main()':
0_0_25724743_22590.cpp:93:5: error: redefinition of 'int main()'
 int main()
     ^
0_0_25724743_22590.cpp:36:5: note: 'int main()' previously defined here
 int main()
     ^