oj.uz

답안 #661017

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
661017 2022-11-23T21:18:10 Z mychecksedad 메기 농장 (IOI22_fish) C++17
9 / 100
 90 ms 47188 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];
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] = 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];
    }
    ll last_max = 0;
    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] = last_max + pref[i + 1][j] - pref[i][j];
        }
        last_max = 0;
        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]);
            last_max = max({last_max, 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 26 ms 3540 KB Output is correct
2 Correct 32 ms 4228 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 90 ms 9380 KB Output is correct
6 Correct 90 ms 9424 KB Output is correct

Subtask #2
6.0 / 6.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 51 ms 7740 KB Output is correct
3 Correct 66 ms 8852 KB Output is correct
4 Correct 23 ms 3540 KB Output is correct
5 Correct 29 ms 4176 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 1 ms 308 KB Output is correct
11 Correct 1 ms 312 KB Output is correct
12 Correct 25 ms 5692 KB Output is correct
13 Correct 29 ms 6556 KB Output is correct
14 Correct 25 ms 5708 KB Output is correct
15 Correct 30 ms 6324 KB Output is correct
16 Correct 25 ms 5736 KB Output is correct
17 Correct 29 ms 6324 KB Output is correct

Subtask #3
0 / 9.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 212 KB Output is correct
2 Incorrect 24 ms 47188 KB 1st lines differ - on the 1st token, expected: '882019', found: '6006131'
3 Halted 0 ms 0 KB -

Subtask #4
0 / 14.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 1 ms 212 KB 1st lines differ - on the 1st token, expected: '3', found: '5124115'
2 Halted 0 ms 0 KB -

Subtask #5
0 / 21.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 1 ms 212 KB 1st lines differ - on the 1st token, expected: '3', found: '5124115'
2 Halted 0 ms 0 KB -

Subtask #6
0 / 17.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 1 ms 212 KB 1st lines differ - on the 1st token, expected: '3', found: '5124115'
2 Halted 0 ms 0 KB -

Subtask #7
0 / 14.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 212 KB Output is correct
2 Incorrect 24 ms 47188 KB 1st lines differ - on the 1st token, expected: '882019', found: '6006131'
3 Halted 0 ms 0 KB -

Subtask #8
0 / 16.0

# 결과 실행 시간 메모리 Grader output
1 Correct 26 ms 3540 KB Output is correct
2 Correct 32 ms 4228 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 90 ms 9380 KB Output is correct
6 Correct 90 ms 9424 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 51 ms 7740 KB Output is correct
9 Correct 66 ms 8852 KB Output is correct
10 Correct 23 ms 3540 KB Output is correct
11 Correct 29 ms 4176 KB Output is correct
12 Correct 1 ms 212 KB Output is correct
13 Correct 0 ms 212 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 1 ms 212 KB Output is correct
16 Correct 1 ms 308 KB Output is correct
17 Correct 1 ms 312 KB Output is correct
18 Correct 25 ms 5692 KB Output is correct
19 Correct 29 ms 6556 KB Output is correct
20 Correct 25 ms 5708 KB Output is correct
21 Correct 30 ms 6324 KB Output is correct
22 Correct 25 ms 5736 KB Output is correct
23 Correct 29 ms 6324 KB Output is correct
24 Correct 1 ms 212 KB Output is correct
25 Incorrect 24 ms 47188 KB 1st lines differ - on the 1st token, expected: '882019', found: '6006131'
26 Halted 0 ms 0 KB -