Compilare: main.cpp: In function 'int main()': main.cpp:70:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<str>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 70 | while(cnt < b[nr].size() && b[nr][cnt].D == i) | ~~~~^~~~~~~~~~~~~~ main.cpp:57:13: warning: unused variable 'q' [-Wunused-variable] 57 | int q = (nr+1)*rad; | ^ main.cpp:55:13: warning: array subscript 100002 is outside array bounds of 'int [100001]' [-Warray-bounds] 55 | fill(freq,freq+NMAX+1+1,0); | ~~~~^~~~~~~~~~~~~~~~~~~~~~ main.cpp:21:5: note: at offset 400008 into object 'freq' of size 400004 21 | int freq[NMAX+1]; | ^~~~ In file included from /usr/include/c++/12.2.1/bits/specfun.h:45, from /usr/include/c++/12.2.1/cmath:1935, from /usr/include/c++/12.2.1/x86_64-pc-linux-gnu/bits/stdc++.h:41, from main.cpp:1: In function 'constexpr typename __gnu_cxx::__enable_if<std::__is_scalar<_Tp>::__value, void>::__type std::__fill_a1(_ForwardIterator, _ForwardIterator, const _Tp&) [with _ForwardIterator = int*; _Tp = int]', inlined from 'constexpr void std::__fill_a(_FIte, _FIte, const _Tp&) [with _FIte = int*; _Tp = int]' at /usr/include/c++/12.2.1/bits/stl_algobase.h:968:21, inlined from 'constexpr void std::fill(_ForwardIterator, _ForwardIterator, const _Tp&) [with _ForwardIterator = int*; _Tp = int]' at /usr/include/c++/12.2.1/bits/stl_algobase.h:998:20, inlined from 'int main()' at main.cpp:55:13: /usr/include/c++/12.2.1/bits/stl_algobase.h:922:18: warning: 'void* __builtin_memset(void*, int, long unsigned int)' forming offset [400004, 400007] is out of the bounds [0, 400004] of object 'freq' with type 'int [100001]' [-Warray-bounds] 922 | *__first = __tmp; | ~~~~~~~~~^~~~~~~ main.cpp: In function 'int main()': main.cpp:21:5: note: 'freq' declared here 21 | int freq[NMAX+1]; | ^~~~