Compilare: main.cpp: In function 'int main()': main.cpp:163:36: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("inrudit.in", "r", stdin); ^ main.cpp:164:38: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("inrudit.out", "w", stdout); ^ main.cpp:167:18: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &k); ^ main.cpp:169:19: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("\n%s", s); ^ main.cpp: In function 'int pow(int, int)': main.cpp:37:3: warning: 'val' may be used uninitialized in this function [-Wmaybe-uninitialized] if (val > k) ^~