View Compilation Error

0_0_5171084_8093.cpp: In function `int main()':
0_0_5171084_8093.cpp:14: error: `strlwr' undeclared (first use this function)
0_0_5171084_8093.cpp:14: error: (Each undeclared identifier is reported only once for each function it appears in.)
0_0_5171084_8093.cpp:20: error: ISO C++ forbids comparison between pointer and integer
0_0_5171084_8093.cpp:21: error: ISO C++ forbids comparison between pointer and integer
0_0_5171084_8093.cpp:23: error: invalid conversion from `char*' to `char'