src.cpp: In function 'int inmain()':
src.cpp:5:29: error: 'stdin' was not declared in this scope
{freopen("TONGTICH.INP","r",stdin);
^
src.cpp:5:34: error: 'freopen' was not declared in this scope
{freopen("TONGTICH.INP","r",stdin);
^
src.cpp:6:29: error: 'stdout' was not declared in this scope
freopen("TONGTICH.OUT","w",stdout);
^