Compilare: main.cpp: In function 'int main()': main.cpp:11:20: warning: format '%d' expects argument of type 'int', but argument 2 has type 'int*' [-Wformat=] printf("%d", &N); ^ main.cpp:6:35: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("ciur.in", "r", stdin); ^ main.cpp:7:37: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("ciur.out", "w", stdout); ^ main.cpp:15:16: warning: 'k' may be used uninitialized in this function [-Wmaybe-uninitialized] k++; ^