Compilare: user.cpp: In function ‘void partII()’: user.cpp:120:42: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int taken = 1; taken <= i + 1 && taken < K; taken++) { ^ user.cpp:131:37: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (size_t j = 1; j <= K; j++) { ^ user.cpp:139:33: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (size_t j = 1; j <= K; j++) { ^ user.cpp: In function ‘void read()’: user.cpp:23:26: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d", &N, &K); ^ user.cpp:26:32: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%lf%lf", &x, &y); ^ user.cpp: In function ‘int main()’: user.cpp:148:38: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("insula2.in", "r", stdin); ^ user.cpp:149:40: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("insula2.out", "w", stdout); ^