0_0_7886955_2858.cpp:42: error: redefinition of `int n'
0_0_7886955_2858.cpp:6: error: `int n' previously declared here
0_0_7886955_2858.cpp:42: error: redefinition of `int ans'
0_0_7886955_2858.cpp:6: error: `int ans' previously declared here
0_0_7886955_2858.cpp:43: error: redefinition of `LL k'
0_0_7886955_2858.cpp:7: error: `LL k' previously declared here
0_0_7886955_2858.cpp:44: error: redefinition of `double k1'
0_0_7886955_2858.cpp:8: error: `double k1' previously declared here
0_0_7886955_2858.cpp:44: error: redefinition of `double k2'
0_0_7886955_2858.cpp:8: error: `double k2' previously declared here
0_0_7886955_2858.cpp:44: error: redefinition of `double sum'
0_0_7886955_2858.cpp:8: error: `double sum' previously declared here
0_0_7886955_2858.cpp:44: error: redefinition of `double t'
0_0_7886955_2858.cpp:8: error: `double t' previously declared here
0_0_7886955_2858.cpp:44: error: redefinition of `double kk'
0_0_7886955_2858.cpp:8: error: `double kk' previously declared here
0_0_7886955_2858.cpp: In function `int main()':
0_0_7886955_2858.cpp:47: error: redefinition of `int main()'
0_0_7886955_2858.cpp:11: error: `int main()' previously defined here
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