Compilare: user.c: In function ‘biggestPositionOfX’: user.c:27:1: warning: control reaches end of non-void function [-Wreturn-type] } ^ user.c: In function ‘biggestPositionOfValueLowerOrEqual’: user.c:52:1: warning: control reaches end of non-void function [-Wreturn-type] } ^ user.c: In function ‘lowestPositionOfX’: user.c:77:1: warning: control reaches end of non-void function [-Wreturn-type] } ^ user.c: In function ‘lowestPositionOfValueLowerOrEqual’: user.c:87:1: warning: control reaches end of non-void function [-Wreturn-type] } ^ user.c: In function ‘main’: user.c:94:12: warning: ignoring return value of ‘freopen’, declared with attribute warn_unused_result [-Wunused-result] freopen("cautbin.in", "r", stdin); ^ user.c:95:12: warning: ignoring return value of ‘freopen’, declared with attribute warn_unused_result [-Wunused-result] freopen("cautbin.out", "w", stdout); ^ user.c:97:10: warning: ignoring return value of ‘scanf’, declared with attribute warn_unused_result [-Wunused-result] scanf("%i", &N); ^ user.c:100:14: warning: ignoring return value of ‘scanf’, declared with attribute warn_unused_result [-Wunused-result] scanf("%i", &list[i]); ^ user.c:103:10: warning: ignoring return value of ‘scanf’, declared with attribute warn_unused_result [-Wunused-result] scanf("%i", &M); ^ user.c:106:14: warning: ignoring return value of ‘scanf’, declared with attribute warn_unused_result [-Wunused-result] scanf("%i %i", &tip, &x); ^