View Compilation Error

0_0_10860665_11385.cpp: In function `int main()':
0_0_10860665_11385.cpp:11: error: `m' undeclared (first use this function)
0_0_10860665_11385.cpp:11: error: (Each undeclared identifier is reported only once for each function it appears in.)
0_0_10860665_11385.cpp:25: error: expected `;' before '}' token