/in/foo.cc: In function 'int main()':
/in/foo.cc:64:5: warning: this 'for' clause does not guard... [-Wmisleading-indentation]
     for(int i=0;i<=n+m;i++) printf("%lld ",c[i]); puts("");
     ^~~
/in/foo.cc:64:51: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'for'
     for(int i=0;i<=n+m;i++) printf("%lld ",c[i]); puts("");
                                                   ^~~~