/in/foo.cc:3:12: warning: ISO C++11 requires whitespace after the macro name
 #define inf=0x3f3f3f;
            ^
/in/foo.cc: In function 'int main()':
/in/foo.cc:32:4: warning: this 'for' clause does not guard... [-Wmisleading-indentation]
    for(int i=1;i<=n;i++)
    ^~~
/in/foo.cc:41:5: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'for'
     cin>>p;
     ^~~