View Compilation Error

626997_0_0_29236.cpp:3: error: `main' must return `int'
626997_0_0_29236.cpp: In function `int main(...)':
626997_0_0_29236.cpp:10: error: `strlen' undeclared (first use this function)
626997_0_0_29236.cpp:10: error: (Each undeclared identifier is reported only once for each function it appears in.)