View Compilation Error

0_0_1190954_3452.cpp:1: error: expected unqualified-id before '?' token
0_0_1190954_3452.cpp:1: error: expected `,' or `;' before '?' token
0_0_1190954_3452.cpp:1: error: invalid token
0_0_1190954_3452.cpp: In function `int illegal(int, int, int)':
0_0_1190954_3452.cpp:20: error: `mo' undeclared (first use this function)
0_0_1190954_3452.cpp:20: error: (Each undeclared identifier is reported only once for each function it appears in.)
0_0_1190954_3452.cpp: In function `int g(int, int, int)':
0_0_1190954_3452.cpp:32: error: `mo' undeclared (first use this function)
0_0_1190954_3452.cpp: In function `int main()':
0_0_1190954_3452.cpp:55: error: `scanf' undeclared (first use this function)
0_0_1190954_3452.cpp:59: error: `printf' undeclared (first use this function)