Compilare: main.cpp: In function 'int main()': main.cpp:88:13: warning: unused variable 'p' [-Wunused-variable] int p; ^ main.cpp:79:26: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d", &n, &k); ^ main.cpp:90:32: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &anc[i][0]); ^