/in/foo.cc: In function 'int main()':
/in/foo.cc:21:5: warning: this 'while' clause does not guard... [-Wmisleading-indentation]
     while (l<=r&&q[r]<=f[j+k*p[i]]-k*w[i]) r--; q[++r]=f[j+k*p[i]]-k*w[i],b[r]=k;
     ^~~~~
/in/foo.cc:21:49: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'while'
     while (l<=r&&q[r]<=f[j+k*p[i]]-k*w[i]) r--; q[++r]=f[j+k*p[i]]-k*w[i],b[r]=k;
                                                 ^