結果

問題 No.1120 Strange Teacher
ユーザー HEXAebmrHEXAebmr
提出日時 2020-07-22 23:50:05
言語 C++14
(gcc 12.3.0 + boost 1.83.0)
結果
AC  
実行時間 70 ms / 1,000 ms
コード長 4,335 bytes
コンパイル時間 1,174 ms
コンパイル使用メモリ 117,600 KB
実行使用メモリ 6,116 KB
最終ジャッジ日時 2024-06-23 02:03:07
合計ジャッジ時間 3,412 ms
ジャッジサーバーID
(参考情報)
judge5 / judge3
このコードへのチャレンジ
(要ログイン)

テストケース

テストケース表示
入力 結果 実行時間
実行使用メモリ
testcase_00 AC 2 ms
5,248 KB
testcase_01 AC 2 ms
5,376 KB
testcase_02 AC 2 ms
5,376 KB
testcase_03 AC 8 ms
5,376 KB
testcase_04 AC 67 ms
6,116 KB
testcase_05 AC 64 ms
6,004 KB
testcase_06 AC 63 ms
5,988 KB
testcase_07 AC 64 ms
5,988 KB
testcase_08 AC 66 ms
5,984 KB
testcase_09 AC 2 ms
5,376 KB
testcase_10 AC 61 ms
5,376 KB
testcase_11 AC 64 ms
5,376 KB
testcase_12 AC 61 ms
5,376 KB
testcase_13 AC 60 ms
5,376 KB
testcase_14 AC 60 ms
5,376 KB
testcase_15 AC 61 ms
5,376 KB
testcase_16 AC 66 ms
5,988 KB
testcase_17 AC 64 ms
6,112 KB
testcase_18 AC 2 ms
5,376 KB
testcase_19 AC 70 ms
6,112 KB
testcase_20 AC 2 ms
5,376 KB
testcase_21 AC 2 ms
5,376 KB
testcase_22 AC 2 ms
5,376 KB
testcase_23 AC 2 ms
5,376 KB
testcase_24 AC 54 ms
6,112 KB
testcase_25 AC 2 ms
5,376 KB
testcase_26 AC 2 ms
5,376 KB
testcase_27 AC 2 ms
5,376 KB
testcase_28 AC 2 ms
5,376 KB
testcase_29 AC 2 ms
5,376 KB
権限があれば一括ダウンロードができます

ソースコード

diff #

#include <iostream>
#include <iomanip>
#include <string>
#include <stack>
#include <vector>
#include <complex>
#include <math.h>
#include <stdio.h>
#include <algorithm>
#include <utility>
#include <functional>
#include <iterator>
#include <map>
#include <set>
#include <queue>
#include <list>
#include <regex>
#include <limits>
#include <time.h>
#include <cstdint>
using namespace std;
using pii  = pair<int,int>;
using ll=long long;
using ld=long double;
#define pb push_back
#define mp make_pair
#define sc second
#define fr first
#define stpr setprecision
#define cYES cout<<"YES"<<endl
#define cNO cout<<"NO"<<endl
#define cYes cout<<"Yes"<<endl
#define cNo cout<<"No"<<endl
#define rep(i,n) for(ll i=0;i<(n);++i)
#define Rep(i,a,b) for(ll i=(a);i<(b);++i)
#define rrep(i,n) for(ll i=n-1;i>=0;i--)
#define rRep(i,a,b) for(ll i=a;i>=b;i--)
#define crep(i) for(char i='a';i<='z';++i)
#define psortsecond(A,N) sort(A,A+N,[](const pii &a, const pii &b){return a.second<b.second;});
#define ALL(x) (x).begin(),(x).end()
#define debug(v) cout<<#v<<":";for(auto x:v){cout<<x<<' ';}cout<<endl;
#define endl '\n'
int ctoi(const char c){
  if('0' <= c && c <= '9') return (c-'0');
  return -1;
}
ll gcd(ll a,ll b){return (b == 0 ? a : gcd(b, a%b));}
ll lcm(ll a,ll b){return a*b/gcd(a,b);}
constexpr ll MOD=1000000007;
constexpr ll INF=1000000011;
constexpr ll MOD2=998244353;
constexpr ll LINF = 1001002003004005006ll;
constexpr ld EPS=10e-8;
template <class T, class U> inline bool chmax(T& lhs, const U& rhs) { if (lhs < rhs) { lhs = rhs; return 1; } return 0; }
template <class T, class U> inline bool chmin(T& lhs, const U& rhs) { if (lhs > rhs) { lhs = rhs; return 1; } return 0; }
template<typename T> istream& operator>>(istream& is,vector<T>& v){for(auto&& x:v)is >> x;return is;}
template<typename T,typename U> istream& operator>>(istream& is, pair<T,U>& p){ is >> p.first; is >> p.second; return is;}
template<typename T,typename U> ostream& operator>>(ostream& os, const pair<T,U>& p){ os << p.first << ' ' << p.second; return os;}
template<class T> ostream& operator<<(ostream& os, vector<T>& v){
  for(auto i=begin(v); i != end(v); ++i){
    if(i !=begin(v)) os << ' ';
    os << *i;
  }
  return os;
}

// modint

template <std::uint_fast64_t Modulus> class modint {
  using u64 = std::uint_fast64_t;

public:
  u64 a;

  constexpr modint(const u64 x = 0) noexcept : a(x % Modulus) {}
  constexpr u64 &value() noexcept { return a; }
  constexpr const u64 &value() const noexcept { return a; }
  constexpr modint operator+(const modint rhs) const noexcept {
    return modint(*this) += rhs;
  }
  constexpr modint operator-(const modint rhs) const noexcept {
    return modint(*this) -= rhs;
  }
  constexpr modint operator*(const modint rhs) const noexcept {
    return modint(*this) *= rhs;
  }
  constexpr modint operator/(const modint rhs) const noexcept {
    return modint(*this) /= rhs;
  }
  constexpr modint &operator+=(const modint rhs) noexcept {
    a += rhs.a;
    if (a >= Modulus) {
      a -= Modulus;
    }
    return *this;
  }
  constexpr modint &operator-=(const modint rhs) noexcept {
    if (a < rhs.a) {
      a += Modulus;
    }
    a -= rhs.a;
    return *this;
  }
  constexpr modint &operator*=(const modint rhs) noexcept {
    a = a * rhs.a % Modulus;
    return *this;
  }
  constexpr modint &operator/=(modint rhs) noexcept {
    u64 exp = Modulus - 2;
    while (exp) {
      if (exp % 2) {
        *this *= rhs;
      }
      rhs *= rhs;
      exp /= 2;
    }
    return *this;
  }
};

ll X[100007],Y[100007];

int main(){
  ll N;
  cin>>N;
  ll ANS=0;
  if(N==2){
    ll A,B,C,D;
    cin>>A>>B>>C>>D;
    if(A+B==C+D) cout<<abs(A-C)<<endl;
    else cout<<-1<<endl;
    return 0;
  }
  rep(i,N){
    cin >> X[i];
    ANS+=X[i];
  }
  rep(i,N){
    cin >> Y[i];
    ANS-=Y[i];
  }
  //cout << ANS << endl;
  vector<ll> V;
  if(ANS>=0 && ANS%(N-2)==0){
    ll K=ANS/(N-2),sum=0;
    rep(i,N){
      //cout << sum << endl;
      ll P=K-(X[i]-Y[i]);
      if(P%2!=0) {
        cout<<-1<<endl;return 0;
      }
      sum+=(K-(X[i]-Y[i]))/2;
      V.pb((Y[i]-(X[i]-K))/2);
    }
    bool Z=1;
    sort(ALL(V));
    reverse(ALL(V));
    ll sum2=0;
    rep(i,N){
      sum2+=V[i];
      if(sum2>K) Z=0;
    }
    if (sum==K&&Z)cout << K <<endl;
    else cout << -1 << endl;
  }
  else cout<<-1<<endl;
}
0