View Compilation Error

0_0_7435413_13250.cpp:50: error: invalid token
0_0_7435413_13250.cpp:50: error: expected constructor, destructor, or type conversion before '<' token
0_0_7435413_13250.cpp:50: error: expected `,' or `;' before '<' token
0_0_7435413_13250.cpp:76: error: redefinition of `const int maxn'
0_0_7435413_13250.cpp:27: error: `const int maxn' previously defined here
0_0_7435413_13250.cpp: In function `int main()':
0_0_7435413_13250.cpp:80: error: redefinition of `int main()'
0_0_7435413_13250.cpp:31: error: `int main()' previously defined here