Compilare: user.cpp: In function ‘int main()’: user.cpp:30:21: warning: format ‘%u’ expects argument of type ‘unsigned int*’, but argument 2 has type ‘uchar* {aka unsigned char*}’ [-Wformat=] scanf("%u", &v1[i]); ^ user.cpp:32:21: warning: format ‘%u’ expects argument of type ‘unsigned int*’, but argument 2 has type ‘uchar* {aka unsigned char*}’ [-Wformat=] scanf("%u", &v2[j]); ^ user.cpp:25:23: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d", &N, &M); ^ user.cpp:30:22: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%u", &v1[i]); ^ user.cpp:32:22: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%u", &v2[j]); ^