Compilare: user.cpp: In function ‘int main()’: user.cpp:16:31: warning: format ‘%s’ expects argument of type ‘char*’, but argument 4 has type ‘char (*)[10000001]’ [-Wformat=] scanf("%d%d\n%s", &A, &B, &s); ^ user.cpp:13:33: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("jstc.in", "r", stdin); ^ user.cpp:14:35: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("jstc.out", "w", stdout); ^ user.cpp:16:32: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d\n%s", &A, &B, &s); ^