/in/foo.cc: In function 'int main()':
/in/foo.cc:39:16: warning: iteration 1001 invokes undefined behavior [-Waggressive-loop-optimizations]
       dp[i][j] = MAXNUM; 
                ^
/in/foo.cc:38:21: note: within this loop
      for(int j = 1;j<=N;j++){
                     ^