% mpicc -o bcast bcast.c
% mpirun -np 4 bcast
10
Process 0 got 10
22          
Process 0 got 22
-1
Process 0 got -1
Process 1 got 10
Process 1 got 22
Process 1 got -1
Process 2 got 10
Process 2 got 22
Process 2 got -1
Process 3 got 10
Process 3 got 22
Process 3 got -1