Compilare: main.cpp: In member function 'void SegmentTree::init(int, int, int)': main.cpp:53:21: warning: suggest parentheses around '+' inside '>>' [-Wparentheses] int mid = l + r >> 1; ~~^~~ main.cpp: In member function 'void SegmentTree::update(int, int, int, int)': main.cpp:65:21: warning: suggest parentheses around '+' inside '>>' [-Wparentheses] int mid = l + r >> 1; ~~^~~ main.cpp: In member function 'int SegmentTree::query(int, int, int, int, int)': main.cpp:74:21: warning: suggest parentheses around '+' inside '>>' [-Wparentheses] int mid = l + r >> 1; ~~^~~ main.cpp: In function 'int main()': main.cpp:108:43: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("confuzie.in", "r", stdin); ^ main.cpp:109:45: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("confuzie.out", "w", stdout); ^ main.cpp:112:27: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d %d", &n, &q); ^ main.cpp:115:31: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d %d", &u, &v); ^ main.cpp:127:27: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &type); ^ main.cpp:129:28: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &x); ^ main.cpp:134:35: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d %d", &x, &y); ^