View Compilation Error

0_0_7266453_2724.cpp:4: error: `longlong' does not name a type
0_0_7266453_2724.cpp: In function `int main()':
0_0_7266453_2724.cpp:7: error: `m' undeclared (first use this function)
0_0_7266453_2724.cpp:7: error: (Each undeclared identifier is reported only once for each function it appears in.)
0_0_7266453_2724.cpp:7: error: `n' undeclared (first use this function)
0_0_7266453_2724.cpp:9: error: `i' undeclared (first use this function)
0_0_7266453_2724.cpp:10: error: `a' undeclared (first use this function)
0_0_7266453_2724.cpp:11: error: `j' undeclared (first use this function)