View Compilation Error

0_0_1965827_30136.cpp:2:21:  string.h : No such file or directory
0_0_1965827_30136.cpp: In function `int main()':
0_0_1965827_30136.cpp:25: error: `strcmp' undeclared (first use this function)
0_0_1965827_30136.cpp:25: error: (Each undeclared identifier is reported only once for each function it appears in.)