oj.uz

답안 #661018

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
661018 2022-11-23T21:24:13 Z mychecksedad 메기 농장 (IOI22_fish) C++17
9 / 100
 83 ms 58968 KB 
#include <bits/stdc++.h>
using namespace std;
typedef long long int ll;
#define pb push_back
const int S = 1e5 + 100;


ll dp[S][15][2], a[S][2], s[S], pref[S][15], dppref[S][15], dpsuf[S][15];
long long max_weights(int n, int m, std::vector<int> x, std::vector<int> y, std::vector<int> w){  
    bool case1 = 1, case2 = 1;
    for(int i = 0; i < m; ++i){
        if(x[i] % 2) case1 = 0;
        if(x[i] > 1) case2 = 0;
    }
    if(case1){
        ll ans = 0;
        for(int i = 0; i < m; ++i) ans += w[i];
        return ans;
    }
    if(case2){
        ll ans1 = 0, ans2 = 0;

        for(int i = 0; i < m; ++i){
            if(x[i] == 0) ans1 += w[i];
            else ans2 += w[i];
        }
        if(n == 2)
            return max(ans1, ans2);
        else{
            ll best = 0, sum = 0;
            int p = 0;
            for(int i = 0; i <= n + 1; ++i) a[i][0] = a[i][1] = s[i] = 0;
            for(int i = 0; i < m; i++) if(x[i] == 0) a[y[i]][0] = w[i]; else a[y[i]][1] = w[i];

            for(int i = n; i >= 0; --i) s[i] = s[i + 1] + a[i][1];

            for(int i = 0; i <= n + 1; ++i){
                best = max(best, s[i] + sum);
                sum += a[i][0];
            }

            return best;
        }
    }
    for(int i = 0; i <= n + 5; ++i){
        for(int j = 0; j < 15; ++j) pref[i][j] = dp[i][j][0] = dp[i][j][1] = dppref[i][j] = dpsuf[i][j] = 0;
    }
    for(int i = 0; i < m; ++i) pref[x[i]][y[i] + 1] = w[i];

    for(int i = 0; i <= n; ++i){
        for(int j = 1; j < 15; ++j) pref[i][j] += pref[i][j - 1];
    }
    for(int i = 0; i <= n; ++i){
        for(int j = 0; j < 10; ++j){    
            dp[i][j][0] = pref[i + 1][j] + pref[i - 1][j] + dppref[i - 1][j];

            dp[i][j][1] = pref[i + 1][j] + dpsuf[i - 1][j] - pref[i][j];
        }
        for(int j = 0; j < 10; ++j){
            if(j == 0) dppref[i][j] = dp[i][j][0] - pref[i + 1][j] - pref[i][j];
            else dppref[i][j] = max(dppref[i][j - 1], dp[i][j][0] - pref[i + 1][j] - pref[i][j]);
        }
        for(int j = 9; j >= 0; --j){
            if(j == 9) dpsuf[i][j] = max(dp[i][j][0], dp[i][j][1]);
            else dpsuf[i][j] = max({dpsuf[i][j + 1], dp[i][j][0], dp[i][j][1]});
        }
    }
    return max(dp[n][0][0], dp[n][0][1]);
}

Compilation message

fish.cpp: In function 'long long int max_weights(int, int, std::vector<int>, std::vector<int>, std::vector<int>)':
fish.cpp:31:17: warning: unused variable 'p' [-Wunused-variable]
   31 |             int p = 0;
      |                 ^

Subtask #1
3.0 / 3.0

# 결과 실행 시간 메모리 Grader output
1 Correct 20 ms 2132 KB Output is correct
2 Correct 27 ms 2648 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 82 ms 7292 KB Output is correct
6 Correct 83 ms 7244 KB Output is correct

Subtask #2
6.0 / 6.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 50 ms 6180 KB Output is correct
3 Correct 55 ms 7272 KB Output is correct
4 Correct 21 ms 2132 KB Output is correct
5 Correct 27 ms 2628 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 0 ms 212 KB Output is correct
12 Correct 23 ms 4352 KB Output is correct
13 Correct 28 ms 4936 KB Output is correct
14 Correct 25 ms 4352 KB Output is correct
15 Correct 26 ms 4692 KB Output is correct
16 Correct 23 ms 4220 KB Output is correct
17 Correct 26 ms 4700 KB Output is correct

Subtask #3
0 / 9.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 212 KB Output is correct
2 Incorrect 30 ms 58968 KB 1st lines differ - on the 1st token, expected: '882019', found: '5124272'
3 Halted 0 ms 0 KB -

Subtask #4
0 / 14.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 0 ms 340 KB 1st lines differ - on the 1st token, expected: '3', found: '5124272'
2 Halted 0 ms 0 KB -

Subtask #5
0 / 21.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 0 ms 340 KB 1st lines differ - on the 1st token, expected: '3', found: '5124272'
2 Halted 0 ms 0 KB -

Subtask #6
0 / 17.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 0 ms 340 KB 1st lines differ - on the 1st token, expected: '3', found: '5124272'
2 Halted 0 ms 0 KB -

Subtask #7
0 / 14.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 212 KB Output is correct
2 Incorrect 30 ms 58968 KB 1st lines differ - on the 1st token, expected: '882019', found: '5124272'
3 Halted 0 ms 0 KB -

Subtask #8
0 / 16.0

# 결과 실행 시간 메모리 Grader output
1 Correct 20 ms 2132 KB Output is correct
2 Correct 27 ms 2648 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 82 ms 7292 KB Output is correct
6 Correct 83 ms 7244 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 50 ms 6180 KB Output is correct
9 Correct 55 ms 7272 KB Output is correct
10 Correct 21 ms 2132 KB Output is correct
11 Correct 27 ms 2628 KB Output is correct
12 Correct 0 ms 212 KB Output is correct
13 Correct 0 ms 212 KB Output is correct
14 Correct 0 ms 212 KB Output is correct
15 Correct 0 ms 212 KB Output is correct
16 Correct 0 ms 212 KB Output is correct
17 Correct 0 ms 212 KB Output is correct
18 Correct 23 ms 4352 KB Output is correct
19 Correct 28 ms 4936 KB Output is correct
20 Correct 25 ms 4352 KB Output is correct
21 Correct 26 ms 4692 KB Output is correct
22 Correct 23 ms 4220 KB Output is correct
23 Correct 26 ms 4700 KB Output is correct
24 Correct 0 ms 212 KB Output is correct
25 Incorrect 30 ms 58968 KB 1st lines differ - on the 1st token, expected: '882019', found: '5124272'
26 Halted 0 ms 0 KB -