Compilare: user.cpp: In function ‘int main()’: user.cpp:66:22: warning: format ‘%d’ expects argument of type ‘int’, but argument 2 has type ‘long long int’ [-Wformat=] printf("%d\n",ops); ^ user.cpp:39:13: warning: unused variable ‘maxx’ [-Wunused-variable] int n,m,maxx=-1,x,r1=0,a,b,a1,a2; ^ user.cpp:39:23: warning: unused variable ‘r1’ [-Wunused-variable] int n,m,maxx=-1,x,r1=0,a,b,a1,a2; ^ user.cpp:37:42: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("ultimulcartus.in","r",stdin); ^ user.cpp:38:44: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("ultimulcartus.out","w",stdout); ^ user.cpp:40:24: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d",&n,&m); ^ user.cpp:70:23: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&x); ^