結果
問題 | No.2276 I Want AC |
ユーザー | Ujjwal Rana |
提出日時 | 2023-04-21 21:45:27 |
言語 | C++17 (gcc 12.3.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 12 ms / 2,000 ms |
コード長 | 3,647 bytes |
コンパイル時間 | 3,878 ms |
コンパイル使用メモリ | 252,420 KB |
実行使用メモリ | 11,944 KB |
最終ジャッジ日時 | 2024-11-15 04:18:37 |
合計ジャッジ時間 | 6,502 ms |
ジャッジサーバーID (参考情報) |
judge3 / judge4 |
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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
6,816 KB |
testcase_01 | AC | 2 ms
6,820 KB |
testcase_02 | AC | 3 ms
6,820 KB |
testcase_03 | AC | 2 ms
6,820 KB |
testcase_04 | AC | 3 ms
6,820 KB |
testcase_05 | AC | 2 ms
6,820 KB |
testcase_06 | AC | 2 ms
6,820 KB |
testcase_07 | AC | 3 ms
6,816 KB |
testcase_08 | AC | 2 ms
6,820 KB |
testcase_09 | AC | 2 ms
6,816 KB |
testcase_10 | AC | 2 ms
6,820 KB |
testcase_11 | AC | 5 ms
7,384 KB |
testcase_12 | AC | 10 ms
11,152 KB |
testcase_13 | AC | 5 ms
7,256 KB |
testcase_14 | AC | 4 ms
6,820 KB |
testcase_15 | AC | 6 ms
8,636 KB |
testcase_16 | AC | 6 ms
8,240 KB |
testcase_17 | AC | 9 ms
10,884 KB |
testcase_18 | AC | 7 ms
9,436 KB |
testcase_19 | AC | 3 ms
6,816 KB |
testcase_20 | AC | 10 ms
11,680 KB |
testcase_21 | AC | 6 ms
7,844 KB |
testcase_22 | AC | 4 ms
6,816 KB |
testcase_23 | AC | 11 ms
11,944 KB |
testcase_24 | AC | 11 ms
11,812 KB |
testcase_25 | AC | 11 ms
11,936 KB |
testcase_26 | AC | 10 ms
11,808 KB |
testcase_27 | AC | 10 ms
11,812 KB |
testcase_28 | AC | 10 ms
11,940 KB |
testcase_29 | AC | 10 ms
11,940 KB |
testcase_30 | AC | 10 ms
11,812 KB |
testcase_31 | AC | 10 ms
11,944 KB |
testcase_32 | AC | 11 ms
11,940 KB |
testcase_33 | AC | 11 ms
11,940 KB |
testcase_34 | AC | 10 ms
11,940 KB |
testcase_35 | AC | 9 ms
11,808 KB |
testcase_36 | AC | 9 ms
11,940 KB |
testcase_37 | AC | 10 ms
11,808 KB |
testcase_38 | AC | 9 ms
11,816 KB |
testcase_39 | AC | 9 ms
11,940 KB |
testcase_40 | AC | 9 ms
11,940 KB |
testcase_41 | AC | 9 ms
11,940 KB |
testcase_42 | AC | 9 ms
11,812 KB |
testcase_43 | AC | 10 ms
11,812 KB |
testcase_44 | AC | 12 ms
11,940 KB |
testcase_45 | AC | 10 ms
11,940 KB |
testcase_46 | AC | 10 ms
11,940 KB |
testcase_47 | AC | 12 ms
11,808 KB |
testcase_48 | AC | 11 ms
11,812 KB |
testcase_49 | AC | 10 ms
11,812 KB |
testcase_50 | AC | 10 ms
11,940 KB |
testcase_51 | AC | 10 ms
11,940 KB |
testcase_52 | AC | 10 ms
11,940 KB |
testcase_53 | AC | 10 ms
11,812 KB |
testcase_54 | AC | 10 ms
11,940 KB |
testcase_55 | AC | 10 ms
11,812 KB |
testcase_56 | AC | 9 ms
11,940 KB |
testcase_57 | AC | 10 ms
11,812 KB |
testcase_58 | AC | 10 ms
11,944 KB |
ソースコード
#pragma GCC target ("avx2") #pragma GCC optimize ("O3") #pragma GCC optimize("Ofast") #pragma GCC optimize ("unroll-loops") // #pragma GCC target("sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,avx,tune=native") #include <bits/stdc++.h> #include <ext/pb_ds/assoc_container.hpp> using namespace __gnu_pbds; using namespace std; #define io ios_base::sync_with_stdio(false);cin.tie(NULL);cout.tie(NULL) #define all(x) (x).begin(), (x).end() #define rall(x) (x).rbegin(), (x).rend() #define endl '\n' typedef long long ll; #define mod1 (ll)1000000007 #define mod2 (ll)998244353 #define pll pair<ll,ll> typedef long double lb; typedef tree< pair<ll, ll>, null_type, less<pair<ll, ll>>, rb_tree_tag, tree_order_statistics_node_update> ordered_set; #define eps (lb)(1e-9) struct custom_hash { static uint64_t splitmix64(uint64_t x) { x += 0x9e3779b97f4a7c15; x = (x ^ (x >> 30)) * 0xbf58476d1ce4e5b9; x = (x ^ (x >> 27)) * 0x94d049bb133111eb; return x ^ (x >> 31); } size_t operator()(uint64_t x) const { static const uint64_t FIXED_RANDOM = chrono::steady_clock::now().time_since_epoch().count(); return splitmix64(x + FIXED_RANDOM); } }; // Operator overloads template<typename T1, typename T2> // cin >> pair<T1, T2> istream& operator>>(istream &istream, pair<T1, T2> &p) { return (istream >> p.first >> p.second); } template<typename T> // cin >> vector<T> istream& operator>>(istream &istream, vector<T> &v) { for (auto &it : v) cin >> it; return istream; } template<typename T1, typename T2> // cout << pair<T1, T2> ostream& operator<<(ostream &ostream, const pair<T1, T2> &p) { return (ostream << p.first << " " << p.second); } template<typename T> // cout << vector<T> ostream& operator<<(ostream &ostream, const vector<T> &c) { for (auto &it : c) cout << it << " "; return ostream; } // Utility functions template <typename T> void print(T &&t) { cout << t << "\n"; } template <typename T, typename... Args> void print(T &&t, Args &&... args) { cout << t << " "; print(forward<Args>(args)...); } mt19937 rng(chrono::steady_clock::now().time_since_epoch().count()); ll random(ll p){ // gives random number in [0,p] return uniform_int_distribution<ll>(0, p)(rng); } ll dp[1<<18]; ll calc[1<<18]; ll n; string s; void solve(); int main() { io; ll t=1,n=1; // cin>>t; while (t--){ solve(); } return 0; } void solve(){ cin>>n>>s; // dp[i] -> total AC in s[0..i] if all ? are A // calc[i] -> total AC in s[i...] if all ? are C ll ans=0; ll cnt=0; for(ll i(0);i<n;++i){ if(i==0){ dp[i]=0; } else if(s[i]!='C'){ dp[i]=dp[i-1]; } else{ dp[i]=cnt+dp[i-1]; } cnt+=(s[i]!='C'); ans=max(ans,dp[i]); } cnt=0; for(ll i(n-1);i>-1;--i){ if(i==n-1){ calc[i]=0; } else if(s[i]!='A'){ calc[i]=calc[i+1]; } else{ calc[i]=cnt+calc[i+1]; } cnt+=(s[i]!='A'); ans=max(ans,calc[i]); } vector<ll>va(n),vc(n),p(n); for(ll i(0);i<n;++i){ if(i==0){ va[i]=(s[i]=='A'); vc[i]=(s[i]=='C'); p[i]=(s[i]=='?'); } else{ va[i]=(s[i]=='A')+va[i-1]; vc[i]=(s[i]=='C')+vc[i-1]; p[i]=(s[i]=='?')+p[i-1]; } } for(ll i(0);i<(n-1);++i){ ans=max(ans,dp[i]+calc[i+1]+(va[i]+p[i])*(vc.back()+p.back()-vc[i]-p[i])); } cout<<ans<<endl; } // Do not get stuck on a single approach for long, think of multiple ways