View Compilation Error

270240_0_3690.cpp:4: error: `main' must return `int'
270240_0_3690.cpp: In function `int main(...)':
270240_0_3690.cpp:7: error: `_int64' undeclared (first use this function)
270240_0_3690.cpp:7: error: (Each undeclared identifier is reported only once for each function it appears in.)
270240_0_3690.cpp:7: error: expected `;' before "ways"
270240_0_3690.cpp:8: error: `ways' undeclared (first use this function)
270240_0_3690.cpp:17: error: `way' undeclared (first use this function)