Compilare: main.cpp: In function 'int bs(int, int)': main.cpp:11:20: warning: unused variable 'last' [-Wunused-variable] int mid, st, dr, last ; ^~~~ main.cpp: In function 'int main()': main.cpp:41:33: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf (fin, "%d%d", &n, &q ) ; ^ main.cpp:43:33: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf (fin, "%d", &nr[i] ) ; ^ main.cpp:45:37: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf (fin, "%d", &v[i][j] ) ; ^ main.cpp:48:43: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf (fin, "%d%d%d", &p, &v1, &v2 ) ; ^