Compilare: main.cpp: In function 'int main()': main.cpp:24:23: warning: format '%s' expects argument of type 'char*', but argument 2 has type 'char (*)[250003]' [-Wformat=] scanf ("%s", &s[i]); ^ main.cpp:18:34: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen ("grea.in", "r", stdin); ^ main.cpp:19:36: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen ("grea.out", "w", stdout); ^ main.cpp:21:25: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf ("%d%d", &n, &k); ^ main.cpp:24:24: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf ("%s", &s[i]); ^