/in/foo.cc: In function 'void zuhe(int, int)':
/in/foo.cc:24:4: warning: this 'for' clause does not guard... [-Wmisleading-indentation]
    for (int i=1;i<=c1;i++)
    ^~~
/in/foo.cc:26:2: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'for'
  c[1][0].aa[1]=1;c[1][1].aa[1]=1;
  ^
/in/foo.cc: In function 'void jia(long long int, long long int)':
/in/foo.cc:13:63: warning: iteration 49 invokes undefined behavior [-Waggressive-loop-optimizations]
    c[cc1][cc2].aa[i]+=c[cc1-1][cc2].aa[i]+c[cc1-1][cc2-1].aa[i];
                                                               ^
/in/foo.cc:11:22: note: within this loop
  for (long long i=1;i<=50;i++)
                     ~^~~~