Compilare: user.cpp: In function ‘int main()’: user.cpp:61:62: warning: format ‘%d’ expects argument of type ‘int*’, but argument 2 has type ‘shi* {aka short int*}’ [-Wformat=] scanf("%d %d %d %d",&v[i].x,&v[i].y,&v[i].xx,&v[i].yy); ^ user.cpp:61:62: warning: format ‘%d’ expects argument of type ‘int*’, but argument 3 has type ‘shi* {aka short int*}’ [-Wformat=] user.cpp:61:62: warning: format ‘%d’ expects argument of type ‘int*’, but argument 4 has type ‘shi* {aka short int*}’ [-Wformat=] user.cpp:61:62: warning: format ‘%d’ expects argument of type ‘int*’, but argument 5 has type ‘shi* {aka short int*}’ [-Wformat=] user.cpp:51:32: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("qxy.in","r",stdin); ^ user.cpp:52:34: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("qxy.out","w",stdout); ^ user.cpp:54:19: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&n); ^ user.cpp:56:45: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] for (int i=1;i<=n;i++) scanf("%d",&t[i]); ^ user.cpp:58:19: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&m); ^ user.cpp:61:63: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d %d %d %d",&v[i].x,&v[i].y,&v[i].xx,&v[i].yy); ^