poklon.cpp: In function '__int128 dfs(ll)':
poklon.cpp:40:33: error: call of overloaded 'abs(__int128)' is ambiguous
40 | return sum[node]=x+y+abs(x-y);
| ^
In file included from /usr/include/c++/10/bits/std_abs.h:38,
from /usr/include/c++/10/cmath:47,
from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:41,
from poklon.cpp:6:
/usr/include/stdlib.h:840:12: note: candidate: 'int abs(int)'
840 | extern int abs (int __x) __THROW __attribute__ ((__const__)) __wur;
| ^~~
In file included from /usr/include/c++/10/cmath:47,
from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:41,
from poklon.cpp:6:
/usr/include/c++/10/bits/std_abs.h:79:3: note: candidate: 'constexpr long double std::abs(long double)'
79 | abs(long double __x)
| ^~~
/usr/include/c++/10/bits/std_abs.h:75:3: note: candidate: 'constexpr float std::abs(float)'
75 | abs(float __x)
| ^~~
/usr/include/c++/10/bits/std_abs.h:71:3: note: candidate: 'constexpr double std::abs(double)'
71 | abs(double __x)
| ^~~
/usr/include/c++/10/bits/std_abs.h:61:3: note: candidate: 'long long int std::abs(long long int)'
61 | abs(long long __x) { return __builtin_llabs (__x); }
| ^~~
/usr/include/c++/10/bits/std_abs.h:56:3: note: candidate: 'long int std::abs(long int)'
56 | abs(long __i) { return __builtin_labs(__i); }
| ^~~
poklon.cpp: In function 'void ACPLS(std::string)':
poklon.cpp:17:20: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
17 | freopen("output.txt", "w", stdout);
| ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~
poklon.cpp:18:20: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
18 | freopen("input.txt", "r", stdin);
| ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~
poklon.cpp: In function 'void moo(std::string)':
poklon.cpp:26:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
26 | freopen((fileName+".in").c_str(),"r",stdin);
| ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
poklon.cpp:27:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
27 | freopen((fileName+".out").c_str(),"w",stdout);
| ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~