View Compilation Error

0_0_9437447_20244.cpp: In function `int main()':
0_0_9437447_20244.cpp:3: error: `inta' undeclared (first use this function)
0_0_9437447_20244.cpp:3: error: (Each undeclared identifier is reported only once for each function it appears in.)
0_0_9437447_20244.cpp:3: error: `b' undeclared (first use this function)
0_0_9437447_20244.cpp:3: error: `c' undeclared (first use this function)
0_0_9437447_20244.cpp:4: error: `a' undeclared (first use this function)
0_0_9437447_20244.cpp:4: error: expected primary-expression before '!=' token
0_0_9437447_20244.cpp:6: error: expected `;' before "printf"