Compilare: main.cpp: In function 'int main()': main.cpp:43:40: warning: too many arguments for format [-Wformat-extra-args] fprintf(fout,"-1\n",mid); ^ main.cpp:47:26: warning: unused variable 'n' [-Wunused-variable] int mid, n = R; ^ main.cpp:14:24: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%d",&N); ^ main.cpp:17:29: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%d",v+i); ^ main.cpp:20:24: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%d",&M); ^ main.cpp:24:40: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d%d", &op, &num ); ^