Compilare: main.cpp: In function 'void baga2(int, int)': main.cpp:71:7: warning: unused variable 'rat' [-Wunused-variable] int rat = last + 1; ^~~ main.cpp: In function 'void solve()': main.cpp:96:24: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d", &n, &k); ^ main.cpp: In function 'int main()': main.cpp:104:40: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("nambartiori.in", "r", stdin); ^ main.cpp:105:42: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("nambartiori.out", "w", stdout); ^ main.cpp:109:18: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &t); ^