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View Compilation Error

0_0_16525749_10335.cpp:28:7: error: 'N' was not declared in this scope
 pii q[N];
       ^
0_0_16525749_10335.cpp: In function 'void col()':
0_0_16525749_10335.cpp:32:2: error: 'q' was not declared in this scope
  q[++ t] = y;
  ^
0_0_16525749_10335.cpp:35:6: error: 'win' was not declared in this scope
   if(win[p.X][p.Y] == -1){
      ^
0_0_16525749_10335.cpp: In function 'int main()':
0_0_16525749_10335.cpp:62:7: error: 'win' was not declared in this scope
   CLR(win,0);
       ^
0_0_16525749_10335.cpp:12:25: note: in definition of macro 'CLR'
 #define CLR(a,b) memset(a,b,sizeof(a))
                         ^


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