Compilare: user.cpp: In function ‘void readFile()’: user.cpp:31:39: warning: format ‘%d’ expects argument of type ‘int*’, but argument 3 has type ‘long long int*’ [-Wformat=] fscanf(f, "%d%d", &x[i], &y[i]); ^ user.cpp:31:39: warning: format ‘%d’ expects argument of type ‘int*’, but argument 4 has type ‘long long int*’ [-Wformat=] user.cpp: In function ‘void solve()’: user.cpp:39:12: warning: unused variable ‘j’ [-Wunused-variable] int i, j; ^ user.cpp: In function ‘void readFile()’: user.cpp:27:42: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f, "%d%lld%lld", &n, &lx, &ly); ^ user.cpp:31:40: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f, "%d%d", &x[i], &y[i]); ^ user.cpp: In function ‘void solve()’: user.cpp:61:33: warning: ‘last’ may be used uninitialized in this function [-Wmaybe-uninitialized] while(last < n && x[last] < i + lx) ^