結果
問題 | No.1709 Indistinguishable by MEX |
ユーザー | Learner Adit |
提出日時 | 2022-07-05 01:50:40 |
言語 | C++17 (gcc 12.3.0 + boost 1.83.0) |
結果 |
WA
|
実行時間 | - |
コード長 | 2,905 bytes |
コンパイル時間 | 4,114 ms |
コンパイル使用メモリ | 237,832 KB |
実行使用メモリ | 31,488 KB |
最終ジャッジ日時 | 2024-12-14 23:17:51 |
合計ジャッジ時間 | 37,265 ms |
ジャッジサーバーID (参考情報) |
judge2 / judge5 |
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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 | WA | - |
testcase_01 | WA | - |
testcase_02 | RE | - |
testcase_03 | WA | - |
testcase_04 | WA | - |
testcase_05 | WA | - |
testcase_06 | WA | - |
testcase_07 | RE | - |
testcase_08 | TLE | - |
testcase_09 | RE | - |
testcase_10 | RE | - |
testcase_11 | RE | - |
testcase_12 | RE | - |
testcase_13 | TLE | - |
testcase_14 | TLE | - |
testcase_15 | RE | - |
testcase_16 | RE | - |
testcase_17 | RE | - |
testcase_18 | TLE | - |
testcase_19 | RE | - |
testcase_20 | TLE | - |
testcase_21 | TLE | - |
testcase_22 | TLE | - |
testcase_23 | RE | - |
testcase_24 | TLE | - |
testcase_25 | TLE | - |
testcase_26 | RE | - |
testcase_27 | RE | - |
testcase_28 | TLE | - |
コンパイルメッセージ
main.cpp: In function 'void solve(long long int)': main.cpp:81:19: warning: 'r' may be used uninitialized [-Wmaybe-uninitialized] 81 | for(ll i=n-2;i>r;i--){ | ~^~ main.cpp:64:10: note: 'r' was declared here 64 | ll l,r; | ^ main.cpp:12:35: warning: 'l' may be used uninitialized [-Wmaybe-uninitialized] 12 | #define fr(x,s,e) for(ll x = s; x < e; ++x) | ^ main.cpp:64:8: note: 'l' was declared here 64 | ll l,r; | ^
ソースコード
/* ********************** ********************** *** ADIT SHAH *** *** DA-IICT *** *** adit19shah *** ********************** ********************** */ #include<bits/stdc++.h> using namespace std; #define fr(x,s,e) for(ll x = s; x < e; ++x) #define ll long long int #define ld long double #define imx 1e18 #define imn -1e18 #define pb push_back #define pll pair<ll,ll> #define vl vector<ll> #define ff first #define ss second #define bl bool #define tr true #define fl false #define all(v) v.begin(),v.end() #define eps 1e-9; //Epsilon value below which approximate floating type number as 0 #define mod1 1000000007 #define mod2 998244353 #define jadap ios_base::sync_with_stdio(false); cin.tie(0); cout.tie(0) //For implementing policy based Data Structure, ordered_set #include <ext/pb_ds/assoc_container.hpp> #include <ext/pb_ds/tree_policy.hpp> using namespace __gnu_pbds; #define ordered_set tree<int, null_type,less<int>, rb_tree_tag,tree_order_statistics_node_update> void yno(bool ok) { if(ok) cout<<"YES\n"; else cout<<"NO\n"; } vl fact(100001); void pre(){ fact[0]=1,fact[1]=1; fr(i,2,100001){ fact[i]=(fact[i-1]*i)%mod1; fact[i]%=mod1; } } void solve(ll z){ ll n; cin>>n; vl v(n); fr(i,0,n) cin>>v[i]; if(n==1){ cout<<1<<"\n"; return; } vl p(n),s(n); ordered_set st; fr(i,0,n) st.insert(i); p[0]=v[0],s[n-1]=v[n-1]; fr(i,1,n) p[i]=min(v[i],p[i-1]); for(ll i=n-2;i>=0;i--) s[i]=min(v[i],s[i+1]); ll l,r; fr(i,0,n) if(!p[i]) {l=i;break;} for(ll i=n-1;i>=0;i--) if(!s[i]) {r=i;break;} vl u(n); st.erase(v[0]); st.erase(v[n-1]); st.erase(0); fr(i,1,l){ if(p[i]==p[i-1]){ ll a=0; while(p[i]==p[i-1]) i++,a++; u[p[i-1]]=a; i--; } else st.erase(v[i]); } for(ll i=n-2;i>r;i--){ if(s[i]==s[i+1]){ ll a=0; while(s[i]==s[i+1]) i--,a++; u[s[i+1]]=a; i++; } else st.erase(v[i]); } /*fr(i,0,n) cout<<u[i]<<" "; cout<<"\n"; for(auto x:st) cout<<x<<" "; cout<<"\n";*/ ll ans=1; for(ll i=n-1;i>=0;i--){ if(u[i]){ ll op=(st.size()-st.order_of_key(i)); ans*=(fact[op]/fact[op-u[i]]); ans%=mod1; ll zz=u[i]; while(zz){ st.erase(prev(st.end())); zz--; } } } cout<<ans<<"\n"; } int main() { /* #ifndef ONLINE_JUDGE freopen("../input.txt", "r", stdin); freopen("../output.txt", "w", stdout); #endif // ONLINE_JUDGE */ jadap; int T=1; cin>>T; pre(); fr(z,0,T){ solve(z); } return 0; }