oj.uz

답안 #625929

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
625929 2022-08-11T03:28:41 Z haojiandan 메기 농장 (IOI22_fish) C++17
100 / 100
 323 ms 52964 KB 
#include "fish.h"
#include <bits/stdc++.h>
using namespace std;
#define MP make_pair
typedef long long ll;
const int maxn=(1e5)+10;
int n,m;
vector<pair<int,int> > vec[maxn];
vector<int> pos[maxn];
vector<ll> dp[maxn][2];
vector<ll> sum[maxn];
ll S(int i,int j) {
	j=lower_bound(vec[i].begin(),vec[i].end(),MP(j+1,0))-vec[i].begin()-1;
	if (j<0) return 0;
	return sum[i][j];
}
const ll INF=1e18;
void chkmax(ll &x,ll y) { if (x<y) x=y; }
ll max_weights(int _n,int _m,vector<int> X,vector<int> Y,vector<int> W) {
	n=_n,m=_m;
	for (int i=0;i<m;i++) Y[i]++,vec[X[i]].push_back(MP(Y[i],W[i]));
	for (int i=0;i<n;i++) {
		sort(vec[i].begin(),vec[i].end());
		ll pre=0; pos[i].push_back(0);
		for (int j=0;j<vec[i].size();j++) {
			pre+=vec[i][j].second;
			sum[i].push_back(pre);
			int p=vec[i][j].first;
			if (i>0) pos[i-1].push_back(p);
			pos[i].push_back(p-1);
			if (i<n-1) pos[i+1].push_back(p);
		}
	}
	for (int i=0;i<n;i++) {
		sort(pos[i].begin(),pos[i].end());
		pos[i].resize(unique(pos[i].begin(),pos[i].end())-pos[i].begin());
		//for (int &x : pos[i]) printf("%d %d\n",i,x);
		dp[i][0].resize(pos[i].size());
		dp[i][1].resize(pos[i].size());
		if (i==0) continue;
		ll m0=-INF,m1=-INF,m3=-INF,m4=-INF;
		for (int j=0;j<pos[i-1].size();j++) {
			chkmax(dp[i-1][1][j],dp[i-1][0][j]);
			
			chkmax(m0,dp[i-1][0][j]-S(i-1,pos[i-1][j]));
		//	if (i==1) printf("%d %lld\n",pos[i-1][j],S(i-1,pos[i-1][j]));
			chkmax(m1,dp[i-1][1][j]);
			ll tmp=S(i,pos[i-1][j]);
			chkmax(m3,dp[i-1][1][j]+tmp);
			chkmax(m4,dp[i-1][0][j]-S(i-1,pos[i-1][j])+tmp);
		}
		for (int j=0;j<pos[i].size();j++) {
			chkmax(dp[i][0][j],max(m0+S(i-1,pos[i][j]),m1));
			chkmax(dp[i][1][j],max(m3,m4+S(i-1,pos[i][j]))-S(i,pos[i][j]));
		//	printf("i=%d,pos=%d,dp=%lld %lld\n",i,pos[i][j],dp[i][0][j],dp[i][1][j]);
		}
	}
	ll ans=0;
	for (ll &j : dp[n-1][0]) chkmax(ans,j);
	for (ll &j : dp[n-1][1]) chkmax(ans,j);
	return ans;
}

Compilation message

fish.cpp: In function 'll max_weights(int, int, std::vector<int>, std::vector<int>, std::vector<int>)':
fish.cpp:25:17: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   25 |   for (int j=0;j<vec[i].size();j++) {
      |                ~^~~~~~~~~~~~~~
fish.cpp:42:17: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   42 |   for (int j=0;j<pos[i-1].size();j++) {
      |                ~^~~~~~~~~~~~~~~~
fish.cpp:52:17: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   52 |   for (int j=0;j<pos[i].size();j++) {
      |                ~^~~~~~~~~~~~~~

Subtask #1
3.0 / 3.0

# 결과 실행 시간 메모리 Grader output
1 Correct 74 ms 26896 KB Output is correct
2 Correct 110 ms 29380 KB Output is correct
3 Correct 25 ms 21356 KB Output is correct
4 Correct 24 ms 21360 KB Output is correct
5 Correct 248 ms 51308 KB Output is correct
6 Correct 267 ms 51780 KB Output is correct

Subtask #2
6.0 / 6.0

# 결과 실행 시간 메모리 Grader output
1 Correct 7 ms 11988 KB Output is correct
2 Correct 160 ms 32912 KB Output is correct
3 Correct 181 ms 36000 KB Output is correct
4 Correct 78 ms 26936 KB Output is correct
5 Correct 108 ms 29324 KB Output is correct
6 Correct 6 ms 12040 KB Output is correct
7 Correct 7 ms 11988 KB Output is correct
8 Correct 6 ms 11988 KB Output is correct
9 Correct 6 ms 11988 KB Output is correct
10 Correct 23 ms 21356 KB Output is correct
11 Correct 24 ms 21332 KB Output is correct
12 Correct 86 ms 28596 KB Output is correct
13 Correct 107 ms 31372 KB Output is correct
14 Correct 99 ms 27780 KB Output is correct
15 Correct 121 ms 28272 KB Output is correct
16 Correct 82 ms 27876 KB Output is correct
17 Correct 92 ms 29464 KB Output is correct

Subtask #3
9.0 / 9.0

# 결과 실행 시간 메모리 Grader output
1 Correct 26 ms 21432 KB Output is correct
2 Correct 23 ms 21360 KB Output is correct
3 Correct 67 ms 25072 KB Output is correct
4 Correct 51 ms 24432 KB Output is correct
5 Correct 83 ms 29992 KB Output is correct
6 Correct 82 ms 30028 KB Output is correct
7 Correct 87 ms 29976 KB Output is correct
8 Correct 109 ms 29988 KB Output is correct

Subtask #4
14.0 / 14.0

# 결과 실행 시간 메모리 Grader output
1 Correct 7 ms 11988 KB Output is correct
2 Correct 7 ms 11988 KB Output is correct
3 Correct 6 ms 11988 KB Output is correct
4 Correct 7 ms 11988 KB Output is correct
5 Correct 6 ms 11988 KB Output is correct
6 Correct 6 ms 11988 KB Output is correct
7 Correct 6 ms 11988 KB Output is correct
8 Correct 6 ms 11988 KB Output is correct
9 Correct 7 ms 12048 KB Output is correct
10 Correct 7 ms 12204 KB Output is correct
11 Correct 7 ms 12116 KB Output is correct
12 Correct 6 ms 12060 KB Output is correct
13 Correct 6 ms 12044 KB Output is correct
14 Correct 7 ms 12116 KB Output is correct

Subtask #5
21.0 / 21.0

# 결과 실행 시간 메모리 Grader output
1 Correct 7 ms 11988 KB Output is correct
2 Correct 7 ms 11988 KB Output is correct
3 Correct 6 ms 11988 KB Output is correct
4 Correct 7 ms 11988 KB Output is correct
5 Correct 6 ms 11988 KB Output is correct
6 Correct 6 ms 11988 KB Output is correct
7 Correct 6 ms 11988 KB Output is correct
8 Correct 6 ms 11988 KB Output is correct
9 Correct 7 ms 12048 KB Output is correct
10 Correct 7 ms 12204 KB Output is correct
11 Correct 7 ms 12116 KB Output is correct
12 Correct 6 ms 12060 KB Output is correct
13 Correct 6 ms 12044 KB Output is correct
14 Correct 7 ms 12116 KB Output is correct
15 Correct 7 ms 11988 KB Output is correct
16 Correct 8 ms 12116 KB Output is correct
17 Correct 43 ms 15592 KB Output is correct
18 Correct 36 ms 15956 KB Output is correct
19 Correct 31 ms 15776 KB Output is correct
20 Correct 29 ms 15640 KB Output is correct
21 Correct 31 ms 15696 KB Output is correct
22 Correct 57 ms 19252 KB Output is correct
23 Correct 13 ms 13012 KB Output is correct
24 Correct 33 ms 14892 KB Output is correct
25 Correct 8 ms 12116 KB Output is correct
26 Correct 16 ms 12920 KB Output is correct

Subtask #6
17.0 / 17.0

# 결과 실행 시간 메모리 Grader output
1 Correct 7 ms 11988 KB Output is correct
2 Correct 7 ms 11988 KB Output is correct
3 Correct 6 ms 11988 KB Output is correct
4 Correct 7 ms 11988 KB Output is correct
5 Correct 6 ms 11988 KB Output is correct
6 Correct 6 ms 11988 KB Output is correct
7 Correct 6 ms 11988 KB Output is correct
8 Correct 6 ms 11988 KB Output is correct
9 Correct 7 ms 12048 KB Output is correct
10 Correct 7 ms 12204 KB Output is correct
11 Correct 7 ms 12116 KB Output is correct
12 Correct 6 ms 12060 KB Output is correct
13 Correct 6 ms 12044 KB Output is correct
14 Correct 7 ms 12116 KB Output is correct
15 Correct 7 ms 11988 KB Output is correct
16 Correct 8 ms 12116 KB Output is correct
17 Correct 43 ms 15592 KB Output is correct
18 Correct 36 ms 15956 KB Output is correct
19 Correct 31 ms 15776 KB Output is correct
20 Correct 29 ms 15640 KB Output is correct
21 Correct 31 ms 15696 KB Output is correct
22 Correct 57 ms 19252 KB Output is correct
23 Correct 13 ms 13012 KB Output is correct
24 Correct 33 ms 14892 KB Output is correct
25 Correct 8 ms 12116 KB Output is correct
26 Correct 16 ms 12920 KB Output is correct
27 Correct 8 ms 12500 KB Output is correct
28 Correct 162 ms 30312 KB Output is correct
29 Correct 257 ms 37636 KB Output is correct
30 Correct 263 ms 44880 KB Output is correct
31 Correct 268 ms 44808 KB Output is correct
32 Correct 189 ms 37312 KB Output is correct
33 Correct 259 ms 45264 KB Output is correct
34 Correct 265 ms 45388 KB Output is correct
35 Correct 100 ms 23656 KB Output is correct
36 Correct 265 ms 42836 KB Output is correct

Subtask #7
14.0 / 14.0

# 결과 실행 시간 메모리 Grader output
1 Correct 26 ms 21432 KB Output is correct
2 Correct 23 ms 21360 KB Output is correct
3 Correct 67 ms 25072 KB Output is correct
4 Correct 51 ms 24432 KB Output is correct
5 Correct 83 ms 29992 KB Output is correct
6 Correct 82 ms 30028 KB Output is correct
7 Correct 87 ms 29976 KB Output is correct
8 Correct 109 ms 29988 KB Output is correct
9 Correct 85 ms 29988 KB Output is correct
10 Correct 75 ms 22884 KB Output is correct
11 Correct 162 ms 33840 KB Output is correct
12 Correct 7 ms 11988 KB Output is correct
13 Correct 6 ms 11988 KB Output is correct
14 Correct 8 ms 11988 KB Output is correct
15 Correct 6 ms 11988 KB Output is correct
16 Correct 7 ms 12044 KB Output is correct
17 Correct 6 ms 11988 KB Output is correct
18 Correct 23 ms 21428 KB Output is correct
19 Correct 23 ms 21388 KB Output is correct
20 Correct 23 ms 21352 KB Output is correct
21 Correct 30 ms 21332 KB Output is correct
22 Correct 114 ms 30892 KB Output is correct
23 Correct 164 ms 37548 KB Output is correct
24 Correct 149 ms 37852 KB Output is correct

Subtask #8
16.0 / 16.0

# 결과 실행 시간 메모리 Grader output
1 Correct 74 ms 26896 KB Output is correct
2 Correct 110 ms 29380 KB Output is correct
3 Correct 25 ms 21356 KB Output is correct
4 Correct 24 ms 21360 KB Output is correct
5 Correct 248 ms 51308 KB Output is correct
6 Correct 267 ms 51780 KB Output is correct
7 Correct 7 ms 11988 KB Output is correct
8 Correct 160 ms 32912 KB Output is correct
9 Correct 181 ms 36000 KB Output is correct
10 Correct 78 ms 26936 KB Output is correct
11 Correct 108 ms 29324 KB Output is correct
12 Correct 6 ms 12040 KB Output is correct
13 Correct 7 ms 11988 KB Output is correct
14 Correct 6 ms 11988 KB Output is correct
15 Correct 6 ms 11988 KB Output is correct
16 Correct 23 ms 21356 KB Output is correct
17 Correct 24 ms 21332 KB Output is correct
18 Correct 86 ms 28596 KB Output is correct
19 Correct 107 ms 31372 KB Output is correct
20 Correct 99 ms 27780 KB Output is correct
21 Correct 121 ms 28272 KB Output is correct
22 Correct 82 ms 27876 KB Output is correct
23 Correct 92 ms 29464 KB Output is correct
24 Correct 26 ms 21432 KB Output is correct
25 Correct 23 ms 21360 KB Output is correct
26 Correct 67 ms 25072 KB Output is correct
27 Correct 51 ms 24432 KB Output is correct
28 Correct 83 ms 29992 KB Output is correct
29 Correct 82 ms 30028 KB Output is correct
30 Correct 87 ms 29976 KB Output is correct
31 Correct 109 ms 29988 KB Output is correct
32 Correct 7 ms 11988 KB Output is correct
33 Correct 7 ms 11988 KB Output is correct
34 Correct 6 ms 11988 KB Output is correct
35 Correct 7 ms 11988 KB Output is correct
36 Correct 6 ms 11988 KB Output is correct
37 Correct 6 ms 11988 KB Output is correct
38 Correct 6 ms 11988 KB Output is correct
39 Correct 6 ms 11988 KB Output is correct
40 Correct 7 ms 12048 KB Output is correct
41 Correct 7 ms 12204 KB Output is correct
42 Correct 7 ms 12116 KB Output is correct
43 Correct 6 ms 12060 KB Output is correct
44 Correct 6 ms 12044 KB Output is correct
45 Correct 7 ms 12116 KB Output is correct
46 Correct 7 ms 11988 KB Output is correct
47 Correct 8 ms 12116 KB Output is correct
48 Correct 43 ms 15592 KB Output is correct
49 Correct 36 ms 15956 KB Output is correct
50 Correct 31 ms 15776 KB Output is correct
51 Correct 29 ms 15640 KB Output is correct
52 Correct 31 ms 15696 KB Output is correct
53 Correct 57 ms 19252 KB Output is correct
54 Correct 13 ms 13012 KB Output is correct
55 Correct 33 ms 14892 KB Output is correct
56 Correct 8 ms 12116 KB Output is correct
57 Correct 16 ms 12920 KB Output is correct
58 Correct 8 ms 12500 KB Output is correct
59 Correct 162 ms 30312 KB Output is correct
60 Correct 257 ms 37636 KB Output is correct
61 Correct 263 ms 44880 KB Output is correct
62 Correct 268 ms 44808 KB Output is correct
63 Correct 189 ms 37312 KB Output is correct
64 Correct 259 ms 45264 KB Output is correct
65 Correct 265 ms 45388 KB Output is correct
66 Correct 100 ms 23656 KB Output is correct
67 Correct 265 ms 42836 KB Output is correct
68 Correct 85 ms 29988 KB Output is correct
69 Correct 75 ms 22884 KB Output is correct
70 Correct 162 ms 33840 KB Output is correct
71 Correct 7 ms 11988 KB Output is correct
72 Correct 6 ms 11988 KB Output is correct
73 Correct 8 ms 11988 KB Output is correct
74 Correct 6 ms 11988 KB Output is correct
75 Correct 7 ms 12044 KB Output is correct
76 Correct 6 ms 11988 KB Output is correct
77 Correct 23 ms 21428 KB Output is correct
78 Correct 23 ms 21388 KB Output is correct
79 Correct 23 ms 21352 KB Output is correct
80 Correct 30 ms 21332 KB Output is correct
81 Correct 114 ms 30892 KB Output is correct
82 Correct 164 ms 37548 KB Output is correct
83 Correct 149 ms 37852 KB Output is correct
84 Correct 323 ms 48992 KB Output is correct
85 Correct 317 ms 49468 KB Output is correct
86 Correct 247 ms 51896 KB Output is correct
87 Correct 271 ms 52928 KB Output is correct
88 Correct 6 ms 11988 KB Output is correct
89 Correct 254 ms 52964 KB Output is correct
90 Correct 286 ms 49968 KB Output is correct
91 Correct 219 ms 45892 KB Output is correct