View Compilation Error

1_237_4545_1978.cpp:2:19: cstirng: No such file or directory
1_237_4545_1978.cpp: In function `int main()':
1_237_4545_1978.cpp:6: error: `strlen' undeclared (first use this function)
1_237_4545_1978.cpp:6: error: (Each undeclared identifier is reported only once for each function it appears in.)