Compilare: user.cpp: In function ‘int main()’: user.cpp:50:24: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(size_t i=1; i<=p; ++i) ^ user.cpp:52:19: warning: unused variable ‘y’ [-Wunused-variable] short int y,x; ^ user.cpp:52:21: warning: unused variable ‘x’ [-Wunused-variable] short int y,x; ^ user.cpp: In function ‘void solve1(int, int, int)’: user.cpp:32:20: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%hd",&L); ^ user.cpp: In function ‘int main()’: user.cpp:46:30: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen(infile,"r",stdin); ^ user.cpp:48:40: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%hd%hd%hd%hd",&caz,&n,&m,&p); ^ user.cpp:53:42: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%hd%hd", &t[i].y, &t[i].x); ^