View Compilation Error

0_0_8774333_30960.cpp:42: error: expected constructor, destructor, or type conversion before '<' token
0_0_8774333_30960.cpp:42: error: expected `,' or `;' before '<' token
0_0_8774333_30960.cpp: In function `void solve(int)':
0_0_8774333_30960.cpp:63: error: `M' undeclared (first use this function)
0_0_8774333_30960.cpp:63: error: (Each undeclared identifier is reported only once for each function it appears in.)
0_0_8774333_30960.cpp: In function `int main()':
0_0_8774333_30960.cpp:77: error: `M' undeclared (first use this function)