Compilare: user.cpp: In function ‘int main()’: user.cpp:47:49: warning: format ‘%d’ expects argument of type ‘int*’, but argument 2 has type ‘ll* {aka long long int*}’ [-Wformat=] for (i=1;i<=n;i++) scanf("%d %d",&t[i].x,&t[i].y); ^ user.cpp:47:49: warning: format ‘%d’ expects argument of type ‘int*’, but argument 3 has type ‘ll* {aka long long int*}’ [-Wformat=] user.cpp:44:29: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("cmap.in","r",stdin); ^ user.cpp:45:31: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("cmap.out","w",stdout); ^ user.cpp:46:15: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&n); ^ user.cpp:47:50: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] for (i=1;i<=n;i++) scanf("%d %d",&t[i].x,&t[i].y); ^