View Compilation Error

234450_0_9040.cpp: In function `int main()':
234450_0_9040.cpp:8: error: `memset' undeclared (first use this function)
234450_0_9040.cpp:8: error: (Each undeclared identifier is reported only once for each function it appears in.)
234450_0_9040.cpp:51: error: return-statement with no value, in function returning 'int'