oj.uz

Submission #966208

# Submission time Handle Problem Language Result Execution time Memory
966208 2024-04-19T14:13:49 Z andrej246 Catfish Farm (IOI22_fish) C++17
12 / 100
 66 ms 7272 KB 
#include "fish.h"

#include <bits/stdc++.h>
using namespace std;

#define NL '\n'
#define EL cout << NL
#define FOR(i,n) for(int i = 0; i < (n); i++)
#define FORS(i,s,n) for(int i = (s); i < (n); i++)
#define PRINTV(v) for(auto a:v) {cout << a << " ";} EL;
#define PRINTVV(v) for(auto a:v) {PRINTV(a);}
#define f first
#define s second
#define all(v) (v).begin(),(v).end()
#define STRP(p) "{" << (p).f << "," << (p).s << "}"
#define PRINTVP(v) for(auto a:v) {cout << STRP(a) << " ";} EL;
#define PRINTVVP(v) for(auto a:v) {PRINTVP(a);}

typedef long long ll;
typedef vector<ll> vl;
typedef vector<vl> vvl;
typedef pair<ll,ll> pl;
typedef vector<pl> vpl;
typedef vector<vpl> vvpl;

long long max_weights(int N, int M, std::vector<int> X, std::vector<int> Y,
                      std::vector<int> W) {
    bool even = true;
    bool smallx = true;
    bool smally =  true;
    FOR(i,M) {
        if (X[i] % 2 == 1) even = false;
        if (X[i] <= 1) smallx = false;
        if (Y[i] != 0) smally = false;
    }
    if (even) {
        ll res = 0;
        FOR(i,M) {
            res += W[i];
        }
        return res;
    }
    if (smallx) {
        vl left(N);
        vl right(N);
        FOR(i,M) {
            if (X[i] == 0) left[Y[i]] = W[i];
            else right[Y[i]] = W[i];
        }
        if (N == 2) {
            return max(right[0]+right[1],left[0]+left[1]);
        }
        ll ans = 0;
        FOR(i,N) {
            ans += right[i];
        }
        ll psum = ans;
        FOR(i,N) {
            psum += left[i]-right[i];
            ans = max(ans,psum);
        }
        return ans;
    }
    if (smally) {
        vector<array<array<ll,2>,2>> dp(N);
        vl a(N);
        FOR(i,M) a[X[i]] = W[i];
        dp[0][0] = {0,0};
        dp[0][1] = {0,0};
        FORS(i,1,N) {
            dp[i][0][0] = max(dp[i-1][0][0],dp[i-1][1][0]);
            dp[i][1][0] = max(dp[i-1][0][1],dp[i-1][1][1]) + a[i];
            dp[i][0][1] = max(dp[i-1][1][0],dp[i-1][0][0] + a[i-1]);
            dp[i][1][1] = max(dp[i-1][0][1],dp[i-1][1][1]);
        }
        return max(dp[N-1][0][0],max(dp[N-1][0][1],max(dp[N-1][1][0],dp[N-1][1][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:78:1: warning: control reaches end of non-void function [-Wreturn-type]
   78 | }
      | ^

Subtask #1
3.0 / 3.0

# Verdict Execution time Memory Grader output
1 Correct 21 ms 2136 KB Output is correct
2 Correct 21 ms 2636 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 66 ms 7272 KB Output is correct
6 Correct 66 ms 7248 KB Output is correct

Subtask #2
0 / 6.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 344 KB 1st lines differ - on the 1st token, expected: '2', found: '1'
2 Halted 0 ms 0 KB -

Subtask #3
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 1 ms 1884 KB Output is correct
3 Correct 13 ms 5136 KB Output is correct
4 Correct 9 ms 5212 KB Output is correct
5 Correct 22 ms 6492 KB Output is correct
6 Correct 22 ms 6492 KB Output is correct
7 Correct 21 ms 6488 KB Output is correct
8 Correct 22 ms 6484 KB Output is correct

Subtask #4
0 / 14.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 344 KB 1st lines differ - on the 1st token, expected: '3', found: '2'
2 Halted 0 ms 0 KB -

Subtask #5
0 / 21.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 344 KB 1st lines differ - on the 1st token, expected: '3', found: '2'
2 Halted 0 ms 0 KB -

Subtask #6
0 / 17.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 344 KB 1st lines differ - on the 1st token, expected: '3', found: '2'
2 Halted 0 ms 0 KB -

Subtask #7
0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 1 ms 1884 KB Output is correct
3 Correct 13 ms 5136 KB Output is correct
4 Correct 9 ms 5212 KB Output is correct
5 Correct 22 ms 6492 KB Output is correct
6 Correct 22 ms 6492 KB Output is correct
7 Correct 21 ms 6488 KB Output is correct
8 Correct 22 ms 6484 KB Output is correct
9 Incorrect 24 ms 6496 KB 1st lines differ - on the 1st token, expected: '99999', found: '66666'
10 Halted 0 ms 0 KB -

Subtask #8
0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 21 ms 2136 KB Output is correct
2 Correct 21 ms 2636 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 66 ms 7272 KB Output is correct
6 Correct 66 ms 7248 KB Output is correct
7 Incorrect 0 ms 344 KB 1st lines differ - on the 1st token, expected: '2', found: '1'
8 Halted 0 ms 0 KB -