結果

問題 No.1265 Balloon Survival
ユーザー uchiiiiuchiiii
提出日時 2020-10-24 00:09:40
言語 C++17
(gcc 12.3.0 + boost 1.83.0)
結果
AC  
実行時間 747 ms / 2,000 ms
コード長 4,169 bytes
コンパイル時間 3,566 ms
コンパイル使用メモリ 229,692 KB
実行使用メモリ 34,892 KB
最終ジャッジ日時 2023-09-28 19:27:04
合計ジャッジ時間 12,653 ms
ジャッジサーバーID
(参考情報)
judge15 / judge14
このコードへのチャレンジ(β)

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
4,376 KB
testcase_01 AC 2 ms
4,380 KB
testcase_02 AC 2 ms
4,380 KB
testcase_03 AC 2 ms
4,380 KB
testcase_04 AC 2 ms
4,380 KB
testcase_05 AC 2 ms
4,380 KB
testcase_06 AC 2 ms
4,376 KB
testcase_07 AC 2 ms
4,376 KB
testcase_08 AC 2 ms
4,376 KB
testcase_09 AC 2 ms
4,380 KB
testcase_10 AC 2 ms
4,380 KB
testcase_11 AC 2 ms
4,380 KB
testcase_12 AC 1 ms
4,376 KB
testcase_13 AC 2 ms
4,376 KB
testcase_14 AC 40 ms
7,144 KB
testcase_15 AC 25 ms
6,368 KB
testcase_16 AC 8 ms
4,480 KB
testcase_17 AC 270 ms
19,928 KB
testcase_18 AC 12 ms
4,936 KB
testcase_19 AC 9 ms
4,576 KB
testcase_20 AC 34 ms
7,088 KB
testcase_21 AC 112 ms
11,504 KB
testcase_22 AC 53 ms
8,396 KB
testcase_23 AC 60 ms
8,952 KB
testcase_24 AC 726 ms
34,664 KB
testcase_25 AC 722 ms
34,856 KB
testcase_26 AC 721 ms
34,756 KB
testcase_27 AC 738 ms
34,628 KB
testcase_28 AC 723 ms
34,724 KB
testcase_29 AC 711 ms
34,740 KB
testcase_30 AC 712 ms
34,796 KB
testcase_31 AC 744 ms
34,832 KB
testcase_32 AC 747 ms
34,892 KB
testcase_33 AC 739 ms
34,628 KB
testcase_34 AC 2 ms
4,380 KB
testcase_35 AC 2 ms
4,380 KB
権限があれば一括ダウンロードができます
コンパイルメッセージ
main.cpp: 関数 ‘int main()’ 内:
main.cpp:69:37: 警告: narrowing conversion of ‘dist.main()::<ラムダ(int, int)>(i, j)’ from ‘double’ to ‘long long int’ [-Wnarrowing]
   69 |             if(i==0) st.insert({dist(i,j), {INF, j}});
      |                                 ~~~~^~~~~
main.cpp:70:33: 警告: narrowing conversion of ‘dist.main()::<ラムダ(int, int)>(i, j)’ from ‘double’ to ‘long long int’ [-Wnarrowing]
   70 |             else st.insert({dist(i,j), {i,j}});
      |                             ~~~~^~~~~

ソースコード

diff #

#pragma GCC target("avx2")
#pragma GCC optimize("03")
#pragma GCC optimize("unroll-loops")
#include <bits/stdc++.h>
using namespace std; using ld = long double; using ll = long long;
using ull = unsigned long long;
#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 REP(i,a,b) for(int i=(a);i<(b);i++)
#define PII pair<int, int>
#define PLL pair<ll, ll>
#define ALL(x) (x).begin(), (x).end()
#define QUERY int num_query;cin>>num_query; while(num_query--)
// 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;
void flush() {cout<<flush;}
template <typename T> static constexpr T inf = numeric_limits<T>::max()/2;
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_popcountll(a);}
template<class T>inline T emod(T a, T p) { return (a%p + p) % p;}
template <typename T1, typename T2> ostream &operator<<(ostream &os, const pair<T1, T2> &pa) { os << '(' << pa.first << ',' << pa.second << ')'; return os; }
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 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> x(n), y(n);
    rep(i,n) cin>>x[i]>>y[i];
    auto dist = [&](int i, int j) {
        return pow(abs(x[i]-x[j]), 2) + pow(abs(y[i]-y[j]), 2);
    };

    set<pair<ll, PII>> st;
    rep(i,n) {
        REP(j, i+1, n) {
            if(i==0) st.insert({dist(i,j), {INF, j}});
            else st.insert({dist(i,j), {i,j}});
        }
    }
    debug(st);
    set<int> del;
    int ans = 0;
    for(auto [d, c]: st) {
        if(c.first==INF) {
            if(del.count(c.second)==0) {
                del.insert(c.second);
                ans++;
            }
            continue;
        }
        if(del.count(c.first)==0 and del.count(c.second)==0) {
            del.insert(c.first);
            del.insert(c.second);
        } 
    }
    cout << ans << endl;
}
0