Submission #1044044

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
1044044	2024-08-05T06:40:10 Z	guagua0407	Portal (BOI24_portal)	C++17	Compilation error	0 ms	0 KB

Main

//#pragma GCC optimize("O3")
#include <bits/stdc++.h>
using namespace std;
#define ll __int128
#define pii pair<int,int>
#define f first
#define s second
#define all(x) x.begin(),x.end()
#define _ ios::sync_with_stdio(0); cin.tie(0); cout.tie(0);

int dx[4]={0,0,1,-1};
int dy[4]={1,-1,0,0};

void setIO(string s) {
    freopen((s + ".in").c_str(), "r", stdin);
    freopen((s + ".out").c_str(), "w", stdout);
}

int main() {_
    int n;
    cin>>n;
    if(n<=2){
        cout<<-1<<'\n';
        return 0;
    }
    pair<ll,ll> st,a,b;
    int x,y;
    cin>>x>>y;
    st.f=x,st.s=y;
    cin>>x>>y;
    a.f=x,a.s=y;
    a.f-=st.f;
    a.s-=st.s;
    if(a.f<0){
        a.f*=-1;
        a.s*=-1;
    }
    vector<ll> ys;
    auto go=[&](){
        if(a.f<b.f) swap(a,b);
        while(b.f!=0){
            ll c=a.f/b.f;
            a.f-=c*b.f;
            a.s-=c*b.s;
            if(a.f<b.f) swap(a,b);
        }
        ys.push_back(abs(b.s));
    };
    for(int i=0;i<n-2;i++){
        cin>>x>>y;
        b.f=x,b.s=y;
        b.f-=st.f;
        b.s-=st.s;
        if(b.f<0){
            b.f*=-1;
            b.s*=-1;
        }
        go();
    }
    ll g=ys[0];
    for(int i=1;i<(int)ys.size();i++){
        g=__gcd(g,ys[i]);
    }
    ll ans=abs(g*a.f);
    cout<<(ans==0?-1:(long long)ans)<<'\n';
    return 0;
}
//maybe its multiset not set
//yeeorz
//laborz

Compilation message

Main.cpp: In lambda function:
Main.cpp:47:29: error: call of overloaded 'abs(__int128&)' is ambiguous
   47 |         ys.push_back(abs(b.s));
      |                             ^
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 Main.cpp:2:
/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 Main.cpp:2:
/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); }
      |   ^~~
Main.cpp: In function 'int main()':
Main.cpp:64:21: error: call of overloaded 'abs(__int128)' is ambiguous
   64 |     ll ans=abs(g*a.f);
      |                     ^
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 Main.cpp:2:
/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 Main.cpp:2:
/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); }
      |   ^~~
Main.cpp: In function 'void setIO(std::string)':
Main.cpp:15:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   15 |     freopen((s + ".in").c_str(), "r", stdin);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Main.cpp:16:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   16 |     freopen((s + ".out").c_str(), "w", stdout);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~