Compilare: user.cpp: In function ‘void actualizare(int, int, int)’: user.cpp:31:218: warning: operation on ‘arbore_intervale[curent]’ may be undefined [-Wsequence-point] arbore_intervale[curent] = arbore_intervale[ 2 * curent] > arbore_intervale[ 2 * curent + 1] ? arbore_intervale[curent] = arbore_intervale[2 * curent] : arbore_intervale[curent] = arbore_intervale[2 * curent + 1]; ^ user.cpp: In function ‘int main(int, const char**)’: user.cpp:53:37: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("arbint.in", "r", stdin); ^ user.cpp:54:39: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("arbint.out", "w", stdout); ^ user.cpp:56:27: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d %d", &N, &M); ^ user.cpp:60:26: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &val); ^ user.cpp:67:38: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d %d %d", &x, &a, &b); ^