Compilare: user.cpp: In function ‘bool exista(int, int)’: user.cpp:39:33: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i=0; i<v[cod].size(); ++i) { ^ user.cpp: In function ‘int main()’: user.cpp:58:22: warning: format ‘%s’ expects argument of type ‘char*’, but argument 2 has type ‘char (*)[1000010]’ [-Wformat=] scanf ("%s\n", &s); ^ user.cpp:70:26: warning: format ‘%s’ expects argument of type ‘char*’, but argument 2 has type ‘char (*)[2510]’ [-Wformat=] scanf ("%s\n", &B); ok=0; ^ user.cpp:54:38: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen ("radio2.in", "r", stdin); ^ user.cpp:55:40: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen ("radio2.out", "w", stdout); ^ user.cpp:57:44: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf ("%d %d %d %d\n", &n, &m, &L, &K); ^ user.cpp:58:23: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf ("%s\n", &s); ^ user.cpp:70:27: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf ("%s\n", &B); ok=0; ^