View Compilation Error

779406_0_0_29532.cpp:3: error: `main' must return `int'
779406_0_0_29532.cpp: In function `int main(...)':
779406_0_0_29532.cpp:5: error: expected primary-expression before '%' token
779406_0_0_29532.cpp:5: error: `d' undeclared (first use this function)
779406_0_0_29532.cpp:5: error: (Each undeclared identifier is reported only once for each function it appears in.)