Compilare: main.cpp: In function 'int main()': main.cpp:20:27: warning: format '%s' expects argument of type 'char*', but argument 3 has type 'char (*)[1048576]' [-Wformat=] scanf("%d\n%s", &n, &str); ^ main.cpp:15:35: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen ("heist.in", "r", stdin); ^ main.cpp:16:37: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen ("heist.out", "w", stdout); ^ main.cpp:20:28: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d\n%s", &n, &str); ^