prog.cpp:1:20: warning: extra tokens at end of #include directive [enabled by default]
#include <iostream>>
^
prog.cpp: In function ‘int main()’:
prog.cpp:7:48: error: ‘system’ was not declared in this scope
if (h<b || h==0) { cout<<h; system ("pause"); return 0; }
^
prog.cpp:15:19: error: ‘system’ was not declared in this scope
system("pause");
^