Compilare: main.cpp: In function 'void solve(int)': main.cpp:31:47: warning: unused variable 'mn' [-Wunused-variable] int sz = v[id].size(), cnt, len, st, dr, mx, mn; ^~ In file included from /usr/include/string.h:635:0, from /usr/include/c++/6/cstring:42, from /usr/include/x86_64-linux-gnu/c++/6/bits/stdc++.h:48, from main.cpp:2: In function 'void* memset(void*, int, size_t)', inlined from 'void solve2(int)' at main.cpp:57:26: /usr/include/x86_64-linux-gnu/bits/string3.h:90:70: warning: call to void* __builtin___memset_chk(void*, int, long unsigned int, long unsigned int) will always overflow destination buffer return __builtin___memset_chk (__dest, __ch, __len, __bos0 (__dest)); ^