Compilare: user.cpp: In function ‘int LOG()’: user.cpp:14:1: warning: no return statement in function returning non-void [-Wreturn-type] } ^ user.cpp: In function ‘void solve()’: user.cpp:17:11: warning: unused variable ‘i’ [-Wunused-variable] int k, i, j,a, ndp; ^ user.cpp: In function ‘void rsw()’: user.cpp:37:33: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("jap.in", "r", stdin); ^ user.cpp:38:35: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("jap.out", "w", stdout); ^ user.cpp:40:19: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &t); ^ user.cpp:43:30: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d %d", &x, &y); ^