View Compilation Error

0_0_7728790_6026.cpp: In function `int main()':
0_0_7728790_6026.cpp:11: error: ISO C++ forbids comparison between pointer and integer
0_0_7728790_6026.cpp:46: error: `t' undeclared (first use this function)
0_0_7728790_6026.cpp:46: error: (Each undeclared identifier is reported only once for each function it appears in.)