Compilare: user.cpp: In function ‘void read()’: user.cpp:9:36: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d %d %lld", &N, &K, &P); ^ user.cpp: In function ‘int main()’: user.cpp:104:40: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("expresii2.in", "r", stdin); ^ user.cpp:105:42: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("expresii2.out", "w", stdout); ^