/in/foo.cc: In function 'void print(matrix)':
/in/foo.cc:37:57: warning: format '%d' expects argument of type 'int', but argument 2 has type 'LL {aka long long int}' [-Wformat=]
     for(int i = 1; i <= p; i++) printf("%d ", xx.x[1][i]);
                                                         ^
/in/foo.cc: In function 'void print2(matrix)':
/in/foo.cc:43:37: warning: format '%d' expects argument of type 'int', but argument 2 has type 'LL {aka long long int}' [-Wformat=]
             printf("%d ", xx.x[i][j]);
                                     ^