結果
問題 | No.1120 Strange Teacher |
ユーザー | uchiiii |
提出日時 | 2020-09-03 01:35:18 |
言語 | C++17 (gcc 12.3.0 + boost 1.83.0) |
結果 |
WA
|
実行時間 | - |
コード長 | 3,869 bytes |
コンパイル時間 | 3,093 ms |
コンパイル使用メモリ | 218,764 KB |
実行使用メモリ | 5,248 KB |
最終ジャッジ日時 | 2024-11-22 06:00:05 |
合計ジャッジ時間 | 4,657 ms |
ジャッジサーバーID (参考情報) |
judge3 / judge1 |
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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
5,248 KB |
testcase_02 | AC | 2 ms
5,248 KB |
testcase_03 | AC | 4 ms
5,248 KB |
testcase_04 | AC | 20 ms
5,248 KB |
testcase_05 | AC | 21 ms
5,248 KB |
testcase_06 | AC | 20 ms
5,248 KB |
testcase_07 | AC | 20 ms
5,248 KB |
testcase_08 | AC | 21 ms
5,248 KB |
testcase_09 | AC | 2 ms
5,248 KB |
testcase_10 | AC | 20 ms
5,248 KB |
testcase_11 | AC | 20 ms
5,248 KB |
testcase_12 | AC | 21 ms
5,248 KB |
testcase_13 | AC | 20 ms
5,248 KB |
testcase_14 | AC | 20 ms
5,248 KB |
testcase_15 | AC | 21 ms
5,248 KB |
testcase_16 | WA | - |
testcase_17 | WA | - |
testcase_18 | AC | 2 ms
5,248 KB |
testcase_19 | AC | 21 ms
5,248 KB |
testcase_20 | WA | - |
testcase_21 | AC | 2 ms
5,248 KB |
testcase_22 | AC | 2 ms
5,248 KB |
testcase_23 | AC | 2 ms
5,248 KB |
testcase_24 | AC | 18 ms
5,248 KB |
testcase_25 | AC | 3 ms
5,248 KB |
testcase_26 | AC | 2 ms
5,248 KB |
testcase_27 | AC | 2 ms
5,248 KB |
testcase_28 | AC | 2 ms
5,248 KB |
testcase_29 | AC | 2 ms
5,248 KB |
ソースコード
#pragma GCC target("avx2") #pragma GCC optimize("03") #pragma GCC optimize("unroll-loops") #include <bits/stdc++.h> using namespace std; typedef long double ld; typedef long long ll; typedef unsigned long long ull; #define endl "\n" #define FOR(i,a,b) for(int i=(a);i<=(b);i++) #define rep(i,n) for(int i=0;i<(n);i++) #define PII pair<int, int> #define PLL pair<ll, ll> #define ALL(x) (x).begin(), (x).end() int dx[] = {1, 0, -1, 0}; int dy[] = {0, 1, 0, -1}; constexpr int INF=1<<30; constexpr ll LINF=1LL<<60; constexpr ll mod=1e9+7; template<class T>vector<T> vec(int len, T elem) { return vector<T>(len, elem); } // auto dp = vec(52, vec(103, vec(103, INF))); template<class T>inline bool chmax(T &a, const T &b) { if (a<b) { a = b; return 1; } return 0; } template<class T>inline bool chmin(T &a, const T &b) { if (b<a) { a = b; return 1; } return 0; } template<class T>inline int popcount(T a) {return __builtin_popcount(a);} template<class T>inline T emod(T a, T p) { return (a%p + p) % p;} template <typename T> istream &operator>>(istream &is, vector<T> &vec) { for (auto &v : vec) is >> v; return is; } template <typename T> ostream &operator<<(ostream &os, const vector<T> &vec) {os << '\n'; for (auto v : vec) os << v << ' '; os << '\n'; return os;} template <typename T> ostream &operator<<(ostream &os, const deque<T> &vec) { os << "deq["; for (auto v : vec) os << v << ','; os << ']'; return os; } template <typename T> ostream &operator<<(ostream &os, const set<T> &vec) { os << '{'; for (auto v : vec) os << v << ','; os << '}'; return os; } template <typename T> ostream &operator<<(ostream &os, const unordered_set<T> &vec) { os << '{'; for (auto v : vec) os << v << ','; os << '}'; return os; } template <typename T> ostream &operator<<(ostream &os, const multiset<T> &vec) { os << '{'; for (auto v : vec) os << v << ','; os << '}'; return os; } template <typename T> ostream &operator<<(ostream &os, const unordered_multiset<T> &vec) { os << '{'; for (auto v : vec) os << v << ','; os << '}'; return os; } template <typename T1, typename T2> ostream &operator<<(ostream &os, const pair<T1, T2> &pa) { os << '(' << pa.first << ',' << pa.second << ')'; return os; } template <typename TK, typename TV> ostream &operator<<(ostream &os, const map<TK, TV> &mp) { os << '{'; for (auto v : mp) os << v.first << "=>" << v.second << ','; os << '}'; return os; } template <typename TK, typename TV> ostream &operator<<(ostream &os, const unordered_map<TK, TV> &mp) { os << '{'; for (auto v : mp) os << v.first << "=>" << v.second << ','; os << '}'; return os; } struct MyIO { MyIO(){ cin.tie(0); ios::sync_with_stdio(false); cout << fixed << setprecision(15); } } IO_OI; #ifdef LOCAL void debug_out() { cerr << endl; } template <typename Head, typename... Tail> void debug_out(Head H, Tail... T) { cerr << " " << H; debug_out(T...); } #define debug(...) \ cerr << __LINE__ << " [" << #__VA_ARGS__ << "]:", debug_out(__VA_ARGS__) #define dump(x) cerr << __LINE__ << " " << #x << " = " << (x) << endl #else #define debug(...) (void(0)) #define dump(x) (void(0)) #endif //------------------- int main() { int n;cin>>n; vector<ll> a(n); rep(i,n) cin>>a[i]; ll sm=0; rep(i,n) { ll x; cin>>x; a[i] = x-a[i]; sm += a[i]; } if(sm > 0) { cout << -1 << endl; return 0; } if(n==2) { if(a[0] == -a[1]) cout << a[0] << endl; else cout << -1 << endl; return 0; } ll cnt = -sm/(n-2); if(-cnt*(n-2)==sm) { bool ok = true; ll smm = 0; rep(i, n) { ll cur = a[i]+cnt; if(cur&1) ok = false; smm += cur/2; } if(ok and smm==cnt) cout << cnt << endl; else cout << -1 << endl; } else { cout << -1 << endl; } return 0; }