Compilare: user.cpp:142:3: warning: "/*" within comment [-Wcomment] /*for (int i = 1; i <= N; i++) { ^ user.cpp:163:1: warning: "/*" within comment [-Wcomment] /* ^ user.cpp: In function ‘void refresh(int, int, int)’: user.cpp:23:7: warning: unused variable ‘mid’ [-Wunused-variable] int mid = (left + right) >> 1; ^ user.cpp: In function ‘int main()’: user.cpp:176:22: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f, "%d", &N); ^ user.cpp:178:29: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f, "%d", &val[i]); ^ user.cpp:196:39: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("biscuiti.out", "w", stdout); ^