chibrituri.c: In function `main': chibrituri.c:8: warning: `b1' might be used uninitialized in this function chibrituri.c:8: warning: `b2' might be used uninitialized in this function chibrituri.c:8: warning: `b3' might be used uninitialized in this function chibrituri.c:8: warning: `b4' might be used uninitialized in this function chibrituri.c:8: warning: `o1' might be used uninitialized in this function chibrituri.c:8: warning: `o2' might be used uninitialized in this function chibrituri.c:8: warning: `o3' might be used uninitialized in this function chibrituri.c:8: warning: `o4' might be used uninitialized in this function