Compilare: user.cpp: In function ‘int main()’: user.cpp:116:33: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (dp[j].size() >= i) ^ user.cpp:103:29: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d %d\n", &n, &k); ^ user.cpp:108:29: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%s\n", s + 1); ^