/in/foo.cc: In function 'int main()':
/in/foo.cc:18:5: warning: this 'for' clause does not guard... [-Wmisleading-indentation]
     for (i=1;i<nn;i++)
     ^~~
/in/foo.cc:34:7: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'for'
       for (i=1;i<nn;i++)
       ^~~
/in/foo.cc:5:21: warning: unused variable 'p' [-Wunused-variable]
     int i,j,k,x,y,t,p;
                     ^