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답안 #126951

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
126951 2019-07-08T16:50:33 Z liwi 수열 (APIO14_sequence) C++11
50 / 100
 215 ms 2812 KB 
#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>

using namespace std;
using namespace __gnu_pbds;
typedef tree<int, null_type, less<int>, rb_tree_tag,tree_order_statistics_node_update> ordered_set;

#define scan(x) do{while((x=getchar())<'0'); for(x-='0'; '0'<=(_=getchar()); x=(x<<3)+(x<<1)+_-'0');}while(0)
char _;
#define complete_unique(a) a.erase(unique(a.begin(),a.end()),a.end())
#define all(a) a.begin(),a.end()
#define println printf("\n");
#define readln(x) getline(cin,x);
#define pb push_back
#define endl "\n"
#define INT_INF 0x3f3f3f3f
#define LL_INF 0x3f3f3f3f3f3f3f3f
#define MOD 1000000007
#define mp make_pair
#define fastio cin.tie(0); cin.sync_with_stdio(0);

#define MAXN 1005
#define MAXK 205

typedef unsigned long long ull;
typedef long long ll;
typedef long double ld;
typedef unordered_map<int,int> umii;
typedef pair<int,int> pii;
typedef pair<double,double> pdd;
typedef pair<ll,ll> pll;
typedef pair<int,pii> triple;
typedef int8_t byte;

mt19937 g1(time(0));

int randint(int a, int b){return uniform_int_distribution<int>(a, b)(g1);}
ll randlong(ll a,ll b){return uniform_int_distribution<long long>(a, b)(g1);}

ll gcd(ll a, ll b){return b == 0 ? a : gcd(b, a % b);}
ll lcm(ll a, ll b){return a*b/gcd(a,b);}
ll fpow(ll  b, ll exp, ll mod){if(exp == 0) return 1;ll t = fpow(b,exp/2,mod);if(exp&1) return t*t%mod*b%mod;return t*t%mod;}
ll divmod(ll i, ll j, ll mod){i%=mod,j%=mod;return i*fpow(j,mod-2,mod)%mod;}

int len,K,arr[MAXN],par[MAXN][MAXK];
ll dp[MAXN][MAXK],psa[MAXN];

int main(){
	scanf("%d %d",&len,&K); K++;
	for(int i=1; i<=len; i++){
		scanf(" %d",&arr[i]);
		psa[i] = psa[i-1]+arr[i];
	}
	memset(dp,-0x3f,sizeof dp);
	dp[0][0] = dp[0][1] = 0;
	for(int i=1; i<=len; i++){
		dp[i][1] = 0;
		for(int k=2; k<=min(i,K); k++){
			for(int v=i-1; v>=0; v--){
				ll cst = dp[v][k-1]+(psa[i]-psa[v])*psa[v];
				if(cst > dp[i][k]){
					dp[i][k] = cst;
					par[i][k] = v;
				}
			}
		}
	}
	printf("%lld\n",dp[len][K]);
	vector<int> v;
	int curr = len;
	for(int i=K; i>=1; i--){
		if(i < K) v.pb(curr);
		curr = par[curr][i];
	}
	for(int i=(int)v.size()-1; i>=0; i--)
		printf("%d ",v[i]);
}

Compilation message

sequence.cpp: In function 'int main()':
sequence.cpp:50:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d %d",&len,&K); K++;
  ~~~~~^~~~~~~~~~~~~~~~~
sequence.cpp:52:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf(" %d",&arr[i]);
   ~~~~~^~~~~~~~~~~~~~~

Subtask #1
11.0 / 11.0

# 결과 실행 시간 메모리 Grader output
1 Correct 3 ms 1912 KB contestant found the optimal answer: 108 == 108
2 Correct 3 ms 1912 KB contestant found the optimal answer: 999 == 999
3 Correct 3 ms 1912 KB contestant found the optimal answer: 0 == 0
4 Correct 3 ms 1912 KB contestant found the optimal answer: 1542524 == 1542524
5 Correct 3 ms 1916 KB contestant found the optimal answer: 4500000000 == 4500000000
6 Correct 3 ms 2040 KB contestant found the optimal answer: 1 == 1
7 Correct 3 ms 1912 KB contestant found the optimal answer: 1 == 1
8 Correct 3 ms 1912 KB contestant found the optimal answer: 1 == 1
9 Correct 3 ms 1912 KB contestant found the optimal answer: 100400096 == 100400096
10 Correct 3 ms 1912 KB contestant found the optimal answer: 900320000 == 900320000
11 Correct 4 ms 1912 KB contestant found the optimal answer: 3698080248 == 3698080248
12 Correct 4 ms 1912 KB contestant found the optimal answer: 3200320000 == 3200320000
13 Correct 4 ms 1912 KB contestant found the optimal answer: 140072 == 140072
14 Correct 3 ms 1960 KB contestant found the optimal answer: 376041456 == 376041456
15 Correct 4 ms 1904 KB contestant found the optimal answer: 805 == 805
16 Correct 4 ms 1912 KB contestant found the optimal answer: 900189994 == 900189994
17 Correct 4 ms 1912 KB contestant found the optimal answer: 999919994 == 999919994

Subtask #2
11.0 / 11.0

# 결과 실행 시간 메모리 Grader output
1 Correct 3 ms 2044 KB contestant found the optimal answer: 1093956 == 1093956
2 Correct 3 ms 1912 KB contestant found the optimal answer: 302460000 == 302460000
3 Correct 3 ms 2040 KB contestant found the optimal answer: 122453454361 == 122453454361
4 Correct 3 ms 2040 KB contestant found the optimal answer: 93663683509 == 93663683509
5 Correct 3 ms 2040 KB contestant found the optimal answer: 1005304678 == 1005304678
6 Correct 3 ms 1912 KB contestant found the optimal answer: 933702 == 933702
7 Correct 3 ms 2040 KB contestant found the optimal answer: 25082842857 == 25082842857
8 Correct 3 ms 2040 KB contestant found the optimal answer: 687136 == 687136
9 Correct 3 ms 2040 KB contestant found the optimal answer: 27295930079 == 27295930079
10 Correct 3 ms 1912 KB contestant found the optimal answer: 29000419931 == 29000419931

Subtask #3
11.0 / 11.0

# 결과 실행 시간 메모리 Grader output
1 Correct 3 ms 2040 KB contestant found the optimal answer: 610590000 == 610590000
2 Correct 3 ms 2040 KB contestant found the optimal answer: 311760000 == 311760000
3 Correct 7 ms 2040 KB contestant found the optimal answer: 1989216017013 == 1989216017013
4 Correct 3 ms 2168 KB contestant found the optimal answer: 1499437552673 == 1499437552673
5 Correct 7 ms 2168 KB contestant found the optimal answer: 1019625819 == 1019625819
6 Correct 7 ms 2168 KB contestant found the optimal answer: 107630884 == 107630884
7 Correct 7 ms 2040 KB contestant found the optimal answer: 475357671774 == 475357671774
8 Correct 4 ms 2088 KB contestant found the optimal answer: 193556962 == 193556962
9 Correct 4 ms 2168 KB contestant found the optimal answer: 482389919803 == 482389919803
10 Correct 5 ms 2040 KB contestant found the optimal answer: 490686959791 == 490686959791

Subtask #4
17.0 / 17.0

# 결과 실행 시간 메모리 Grader output
1 Correct 6 ms 2808 KB contestant found the optimal answer: 21503404 == 21503404
2 Correct 7 ms 2808 KB contestant found the optimal answer: 140412195 == 140412195
3 Correct 207 ms 2680 KB contestant found the optimal answer: 49729674225461 == 49729674225461
4 Correct 6 ms 2680 KB contestant found the optimal answer: 37485571387523 == 37485571387523
5 Correct 215 ms 2780 KB contestant found the optimal answer: 679388326 == 679388326
6 Correct 182 ms 2708 KB contestant found the optimal answer: 4699030287 == 4699030287
7 Correct 207 ms 2784 KB contestant found the optimal answer: 12418819758185 == 12418819758185
8 Correct 201 ms 2776 KB contestant found the optimal answer: 31093317350 == 31093317350
9 Correct 43 ms 2812 KB contestant found the optimal answer: 12194625429236 == 12194625429236
10 Correct 84 ms 2680 KB contestant found the optimal answer: 12345131038664 == 12345131038664

Subtask #5
0 / 21.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 3 ms 1912 KB Unexpected end of file - int32 expected
2 Halted 0 ms 0 KB -

Subtask #6
0 / 29.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 3 ms 1912 KB Unexpected end of file - int32 expected
2 Halted 0 ms 0 KB -