Submission #4011846
Source Code Expand
//https://atcoder.jp/contests/arc070/tasks/arc070_b #include<bits/stdc++.h> using namespace std; typedef long long LL; #ifdef BTK #define DEBUG if(1) #else #define CIN_ONLY if(1) struct cww {cww() {CIN_ONLY{ios::sync_with_stdio(false); cin.tie(0);}}}star; #define DEBUG if(0) #endif #define ALL(v) (v).begin(),(v).end() #define REC(ret, ...) std::function<ret (__VA_ARGS__)> template <typename T>inline bool chmin(T &l, T r){bool a = l>r; if (a)l = r; return a;} template <typename T>inline bool chmax(T &l, T r){bool a = l<r; if (a)l = r; return a;} template <typename T>istream& operator>>(istream &is, vector<T> &v){for (auto &it : v)is >> it;return is;} class range {private: struct I { int x; int operator*() { return x; }bool operator!=(I& lhs) { return x<lhs.x; }void operator++() { ++x; } }; I i, n;public:range(int n) :i({ 0 }), n({ n }) {}range(int i, int n) :i({ i }), n({ n }) {}I& begin() { return i; }I& end() { return n; }}; constexpr int mod=(int)1e9+7; using V=vector<LL>; inline void chadd(LL& a,const LL b){ a+=b; if(a>=mod)a-=mod; } LL dp[5123]; LL pr[5123]; int main(){ int N,K; cin>>N>>K; vector<int> A(N); cin>>A; int ret=N; dp[0]=1; for(int i:range(N)){ const int a= min(A[i],K); for(int j=K-1;j>=a;j--){ chadd(dp[j],dp[j-a]); } } //for(int i:range(K))cout<<dp[i]<<" ";cout<<endl; for(int i:range(N)){ const int a= min(A[i],K); for(int j:range(K)){ pr[j]=dp[j]; if(j>=a)chadd(pr[j],mod-pr[j-a]); } for(int j:range(K-a,K)){ if(pr[j]){ ret--;break; } } } cout<<ret<<endl; return 0; }
Submission Info
Submission Time | |
---|---|
Task | D - No Need |
User | btk15049 |
Language | C++14 (GCC 5.4.1) |
Score | 600 |
Code Size | 1762 Byte |
Status | AC |
Exec Time | 161 ms |
Memory | 384 KB |
Judge Result
Set Name | Sample | Subtask | All | ||||||
---|---|---|---|---|---|---|---|---|---|
Score / Max Score | 0 / 0 | 300 / 300 | 300 / 300 | ||||||
Status |
|
|
|
Set Name | Test Cases |
---|---|
Sample | 0_000.txt, 0_001.txt, 0_002.txt |
Subtask | 0_000.txt, 0_001.txt, 0_002.txt, 1_003.txt, 1_004.txt, 1_005.txt, 1_006.txt, 1_007.txt, 1_008.txt, 1_009.txt, 1_010.txt, 1_011.txt, 1_012.txt, 1_013.txt, 1_014.txt, 1_015.txt, 1_016.txt, 1_017.txt, 1_018.txt, 1_019.txt, 1_020.txt, 1_021.txt, 1_022.txt, 1_023.txt, 1_024.txt, 1_025.txt |
All | 0_000.txt, 0_001.txt, 0_002.txt, 1_003.txt, 1_004.txt, 1_005.txt, 1_006.txt, 1_007.txt, 1_008.txt, 1_009.txt, 1_010.txt, 1_011.txt, 1_012.txt, 1_013.txt, 1_014.txt, 1_015.txt, 1_016.txt, 1_017.txt, 1_018.txt, 1_019.txt, 1_020.txt, 1_021.txt, 1_022.txt, 1_023.txt, 1_024.txt, 1_025.txt, 2_026.txt, 2_027.txt, 2_028.txt, 2_029.txt, 2_030.txt, 2_031.txt, 2_032.txt, 2_033.txt, 2_034.txt, 2_035.txt, 2_036.txt, 2_037.txt, 2_038.txt, 2_039.txt, 2_040.txt, 2_041.txt, 2_042.txt, 2_043.txt, 2_044.txt, 2_045.txt, 2_046.txt, 2_047.txt, 2_048.txt, 2_049.txt, 2_050.txt |
Case Name | Status | Exec Time | Memory |
---|---|---|---|
0_000.txt | AC | 1 ms | 256 KB |
0_001.txt | AC | 1 ms | 256 KB |
0_002.txt | AC | 1 ms | 256 KB |
1_003.txt | AC | 1 ms | 256 KB |
1_004.txt | AC | 1 ms | 256 KB |
1_005.txt | AC | 1 ms | 256 KB |
1_006.txt | AC | 1 ms | 256 KB |
1_007.txt | AC | 1 ms | 256 KB |
1_008.txt | AC | 2 ms | 256 KB |
1_009.txt | AC | 2 ms | 256 KB |
1_010.txt | AC | 1 ms | 256 KB |
1_011.txt | AC | 1 ms | 256 KB |
1_012.txt | AC | 1 ms | 256 KB |
1_013.txt | AC | 1 ms | 256 KB |
1_014.txt | AC | 1 ms | 256 KB |
1_015.txt | AC | 2 ms | 256 KB |
1_016.txt | AC | 1 ms | 256 KB |
1_017.txt | AC | 1 ms | 256 KB |
1_018.txt | AC | 1 ms | 256 KB |
1_019.txt | AC | 1 ms | 256 KB |
1_020.txt | AC | 1 ms | 256 KB |
1_021.txt | AC | 1 ms | 256 KB |
1_022.txt | AC | 1 ms | 256 KB |
1_023.txt | AC | 1 ms | 256 KB |
1_024.txt | AC | 2 ms | 256 KB |
1_025.txt | AC | 2 ms | 256 KB |
2_026.txt | AC | 1 ms | 256 KB |
2_027.txt | AC | 1 ms | 256 KB |
2_028.txt | AC | 1 ms | 256 KB |
2_029.txt | AC | 161 ms | 384 KB |
2_030.txt | AC | 160 ms | 384 KB |
2_031.txt | AC | 18 ms | 384 KB |
2_032.txt | AC | 2 ms | 256 KB |
2_033.txt | AC | 18 ms | 384 KB |
2_034.txt | AC | 2 ms | 256 KB |
2_035.txt | AC | 2 ms | 256 KB |
2_036.txt | AC | 129 ms | 384 KB |
2_037.txt | AC | 1 ms | 384 KB |
2_038.txt | AC | 1 ms | 384 KB |
2_039.txt | AC | 1 ms | 384 KB |
2_040.txt | AC | 15 ms | 384 KB |
2_041.txt | AC | 67 ms | 384 KB |
2_042.txt | AC | 105 ms | 384 KB |
2_043.txt | AC | 63 ms | 384 KB |
2_044.txt | AC | 73 ms | 384 KB |
2_045.txt | AC | 39 ms | 256 KB |
2_046.txt | AC | 39 ms | 384 KB |
2_047.txt | AC | 72 ms | 384 KB |
2_048.txt | AC | 96 ms | 384 KB |
2_049.txt | AC | 81 ms | 384 KB |
2_050.txt | AC | 72 ms | 384 KB |