View Compilation Error

0_0_4889224_7923.cpp: In function `void acm::solve()':
0_0_4889224_7923.cpp:101: error: unknown namespace `<declaration error>'
0_0_4889224_7923.cpp:101: error: expected primary-expression before "namespace"
0_0_4889224_7923.cpp:101: error: expected `;' before "namespace"
0_0_4889224_7923.cpp:177: error: expected primary-expression before "int"
0_0_4889224_7923.cpp:177: error: expected `;' before "int"