Compilare: user.c: In function ‘main’: user.c:47:9: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(in, "%d", &n); ^ user.c: In function ‘punp’: user.c:13:7: warning: assuming signed overflow does not occur when assuming that (X + c) < X is always false [-Wstrict-overflow] if(c1 < c2) ^ user.c:19:7: warning: assuming signed overflow does not occur when assuming that (X + c) < X is always false [-Wstrict-overflow] if(l1 < l2) ^ user.c:13:7: warning: assuming signed overflow does not occur when assuming that (X - c) <= X is always true [-Wstrict-overflow] if(c1 < c2) ^ user.c:19:7: warning: assuming signed overflow does not occur when assuming that (X + c) < X is always false [-Wstrict-overflow] if(l1 < l2) ^ user.c:19:7: warning: assuming signed overflow does not occur when assuming that (X - c) <= X is always true [-Wstrict-overflow] if(l1 < l2) ^ user.c: In function ‘main’: user.c:13:7: warning: assuming signed overflow does not occur when assuming that (X - c) > X is always false [-Wstrict-overflow] if(c1 < c2) ^ user.c:19:7: warning: assuming signed overflow does not occur when assuming that (X - c) > X is always false [-Wstrict-overflow] if(l1 < l2) ^ user.c:19:7: warning: assuming signed overflow does not occur when assuming that (X - c) > X is always false [-Wstrict-overflow] if(l1 < l2) ^ user.c:13:7: warning: assuming signed overflow does not occur when assuming that (X - c) > X is always false [-Wstrict-overflow] if(c1 < c2) ^ user.c:19:7: warning: assuming signed overflow does not occur when assuming that (X + c) >= X is always true [-Wstrict-overflow] if(l1 < l2) ^ user.c:19:7: warning: assuming signed overflow does not occur when assuming that (X + c) >= X is always true [-Wstrict-overflow] if(l1 < l2) ^