View Compilation Error

0_0_3886850_16905.cpp:129: error: `main' must return `int'
0_0_3886850_16905.cpp: In function `int main(...)':
0_0_3886850_16905.cpp:132: error: `time' undeclared (first use this function)
0_0_3886850_16905.cpp:132: error: (Each undeclared identifier is reported only once for each function it appears in.)