View Compilation Error

0_0_6174106_692.cpp: In function `int main()':
0_0_6174106_692.cpp:9: error: `string' undeclared (first use this function)
0_0_6174106_692.cpp:9: error: (Each undeclared identifier is reported only once for each function it appears in.)
0_0_6174106_692.cpp:9: error: expected `;' before "szLine1"
0_0_6174106_692.cpp:10: error: `cin' undeclared (first use this function)
0_0_6174106_692.cpp:14: error: request for member `size' in `szLine1', which is of non-class type `char[210]'
0_0_6174106_692.cpp:17: error: request for member `size' in `szLine2', which is of non-class type `char[210]'
0_0_6174106_692.cpp:31: error: `cout' undeclared (first use this function)