Compilare: main.cpp: In function 'void build(int, int, int, vvi&)': main.cpp:111:16: warning: suggest parentheses around '+' inside '>>' [-Wparentheses] int m = st + dr >> 1; ~~~^~~~ main.cpp: In function 'void update(int, int, int, int, int, int)': main.cpp:131:16: warning: suggest parentheses around '+' inside '>>' [-Wparentheses] int m = st + dr >> 1; ~~~^~~~ main.cpp: In function 'll query(int, int, int, int, int, int, int)': main.cpp:149:16: warning: suggest parentheses around '+' inside '>>' [-Wparentheses] int m = st + dr >> 1; ~~~^~~~ main.cpp: In function 'int main()': main.cpp:14:42: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] #define FO(x) {freopen(#x".in","r",stdin);freopen(#x".out","w",stdout);} ^ main.cpp:163:9: note: in expansion of macro 'FO' FO(aparate); ^~ main.cpp:14:71: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] #define FO(x) {freopen(#x".in","r",stdin);freopen(#x".out","w",stdout);} ^ main.cpp:163:9: note: in expansion of macro 'FO' FO(aparate); ^~