Compilare: user.cpp: In function ‘int smallerThen(int, int, int, int&, int&)’: user.cpp:137:12: warning: unused variable ‘j’ [-Wunused-variable] int i, j, rez = 0; ^ user.cpp: In function ‘void cautBin(int, int)’: user.cpp:151:9: warning: unused variable ‘i’ [-Wunused-variable] int i = 0, pas = 1 << 29; ^ user.cpp:151:16: warning: unused variable ‘pas’ [-Wunused-variable] int i = 0, pas = 1 << 29; ^ user.cpp: In function ‘void answerQuestions()’: user.cpp:199:12: warning: unused variable ‘j’ [-Wunused-variable] int i, j; ^ user.cpp: In function ‘void readFile()’: user.cpp:21:30: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f, "%d%d", &n, &q); ^ user.cpp:26:34: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f, "%d", &a[i][0]); ^ user.cpp:29:38: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f, "%d", &a[i][j]); ^ user.cpp: In function ‘void answerQuestions()’: user.cpp:203:43: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f, "%d%d%d", &op, &st, &dr); ^