Compilare: main.cpp: In function 'void backt(int, int, int)': main.cpp:35:9: warning: unused variable 'i' [-Wunused-variable] int i; ^ main.cpp: In function 'void cit()': main.cpp:17:24: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d",&n,&g); ^ main.cpp:20:38: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d",&v[i].m,&v[i].p); ^