#632603 (C++17) No.1435 Mmm......

• 問題: No.1435 Mmm......
• ユーザー: tanimani364
• 提出日時: 2021-03-20 20:00:34
• 言語: C++17 (gcc 13.3.0 + boost 1.87.0)
• 結果: AC
• 実行時間: 121 ms / 2,000 ms
• コード長: 2,199 bytes
• コンパイル時間: 2,018 ms
• コンパイル使用メモリ: 197,812 KB
• 最終ジャッジ日時: 2025-01-19 20:42:29
• ジャッジサーバーID （参考情報）: judge1 / judge4

ファイルパターン	結果
sample	AC * 4
other	AC * 24

ソースコード

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
#include <bits/stdc++.h>
//#include<boost/multiprecision/cpp_int.hpp>
//#include<boost/multiprecision/cpp_dec_float.hpp>
//#include <atcoder/all>
#define rep(i, a) for (int i = (int)0; i < (int)a; ++i)
#define rrep(i, a) for (int i = (int)a - 1; i >= 0; --i)
#define REP(i, a, b) for (int i = (int)a; i < (int)b; ++i)
#define RREP(i, a, b) for (int i = (int)a - 1; i >= b; --i)
#define repl(i, a) for (ll i = (ll)0; i < (ll)a; ++i)
#define pb push_back
#define eb emplace_back
#define all(x) x.begin(), x.end()
#define rall(x) x.rbegin(), x.rend()
#define popcount __builtin_popcount
#define fi first
#define se second
using ll = long long;
constexpr ll mod = 1e9 + 7;
constexpr ll mod_998244353 = 998244353;
constexpr ll INF = 1LL << 60;
// #pragma GCC target("avx2")
// #pragma GCC optimize("O3")
// #pragma GCC optimize("unroll-loops")
//using lll=boost::multiprecision::cpp_int;
//using Double=boost::multiprecision::number<boost::multiprecision::cpp_dec_float<1024>>;//仮数部が1024桁
template <class T>
inline bool chmin(T &a, T b)
{
    if (a > b)
    {
        a = b;
        return true;
    }
    return false;
}
template <class T>
inline bool chmax(T &a, T b)
{
    if (a < b)
    {
        a = b;
        return true;
    }
    return false;
}
template <typename T>
T mypow(T x, T n, const T &p = -1)
{ //x^nをmodで割った余り
    if (p != -1)
    {
        x %= p;
    }
    T ret = 1;
    while (n > 0)
    {
        if (n & 1)
        {
            if (p != -1)
                ret = (ret * x) % p;
            else
                ret *= x;
        }
        if (p != -1)
            x = (x * x) % p;
        else
            x *= x;
        n >>= 1;
    }
    return ret;
}
using namespace std;
//using namespace atcoder;
void solve()
{
    int n;
    cin>>n;
    vector<int>a(n);
    rep(i,n)cin>>a[i];
    int r=0;
    multiset<int>st;
    ll ans=0;
    for(int l=0;l+1<n;++l){//[l,r)
        if(r-l==0){
            st.emplace(a[r]);
            ++r;
        }
        if(r-l==1){
            st.emplace(a[r]);
            ++r;
        }
        ++ans;//r-l=2なら必ず満たす
        while(r<n){
            st.emplace(a[r]);
            if(*st.begin()+*next(st.begin())>=*prev(st.end())){
                ++r;
            }else{
                st.erase(st.find(a[r]));
                break;
            }
        }
        ans+=r-l-2;
        st.erase(st.find(a[l]));
    }
    cout<<ans<<"\n";
}
int main()
{
    ios::sync_with_stdio(false);
    cin.tie(nullptr);
    cout << fixed << setprecision(15);
    solve();
    return 0;
}
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX