Compilare: user.cpp: In function ‘int main()’: user.cpp:40:38: warning: format ‘%d’ expects argument of type ‘int*’, but argument 2 has type ‘LL* {aka long long int*}’ [-Wformat=] scanf("%d %d\n",&a[i].x,&a[i].y),a[i].ind = i; ^ user.cpp:40:38: warning: format ‘%d’ expects argument of type ‘int*’, but argument 3 has type ‘LL* {aka long long int*}’ [-Wformat=] user.cpp:37:10: warning: unused variable ‘j’ [-Wunused-variable] int i,j,st,dr,x; ^ user.cpp:34:35: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("vmin.in","r",stdin); ^ user.cpp:35:37: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("vmin.out","w",stdout); ^ user.cpp:38:26: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d %d\n",&N,&M); ^ user.cpp:40:52: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d %d\n",&a[i].x,&a[i].y),a[i].ind = i; ^ user.cpp:56:26: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d\n",&x); ^