Compilare: user.cpp: In function ‘int main()’: user.cpp:16:45: warning: format ‘%s’ expects argument of type ‘char*’, but argument 5 has type ‘char (*)[20003]’ [-Wformat=] scanf("%d%d%d%s%s", &la, &lb, &k, &a, &b); ^ user.cpp:16:45: warning: format ‘%s’ expects argument of type ‘char*’, but argument 6 has type ‘char (*)[20003]’ [-Wformat=] user.cpp:14:36: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("edist.in", "r", stdin); ^ user.cpp:15:38: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("edist.out", "w", stdout); ^ user.cpp:16:46: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d%d%s%s", &la, &lb, &k, &a, &b); ^