View Compilation Error

0_0_9804740_17961.cpp: In function `int main()':
0_0_9804740_17961.cpp:9: error: `m' undeclared (first use this function)
0_0_9804740_17961.cpp:9: error: (Each undeclared identifier is reported only once for each function it appears in.)
0_0_9804740_17961.cpp:9: error: `g' undeclared (first use this function)
0_0_9804740_17961.cpp:15: error: expected `;' before '}' token