oj.uz

답안 #243530

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
243530 2020-07-01T09:42:41 Z osaaateiasavtnl Naan (JOI19_naan) C++14
24 / 100
 10 ms 512 KB 
#include<bits/stdc++.h>
using namespace std;
#define int long long
#define ii pair <int, int>
#define app push_back
#define all(a) a.begin(), a.end()
#define bp __builtin_popcountll
#define ll long long
#define mp make_pair
#define f first
#define s second
#define Time (double)clock()/CLOCKS_PER_SEC
#define debug(x) std::cout << #x << ": " << x << '\n';
 
const int N = 2007, INF = 2e18;
int n, L;
int a[N][N], sum[N]; 

int mult(int a, int b) {
    if (a == 0 || b == 0)
        return 0;
    if (a > INF/b)
        return INF;
    else
        return a * b;
}   

int cost(int i, int l, int r, int one) {
    if (r < l)
        return 0;

    if (l/one == r/one) {
        return (r - l + 1) * a[i][l/one];
    }   

    int ans = 0;

    int lb = l/one;
    ans += (lb * one + one - l) * a[i][l/one];

    int rb = r/one;
    ans += (r - rb * one + 1) * a[i][r/one];

    for (int j = lb+1; j < rb; ++j)
        ans += a[i][j]*one;
    return ans;
}   

int who(int l, int r, int one, const vector <bool> &used) {
    for (int i = 0; i < n; ++i) {
        if (used[i])
            continue;
        if (mult(cost(i, l, r, one), n) >= sum[i] * one) {
            return i;            
        }   
    }               
    return -1;
}

void check(int one) {
    vector <int> cut(n-1), per(n);
    vector <bool> used(n);
    int ptr = 0;
    for (int t = 0; t < n; ++t) {

        if (who(ptr, L * one - 1, one, used) == -1)
            return;

        int l = ptr - 1;
        int r = L * one - 1;
        while (l < r - 1) {
            int m = (l + r) >> 1;
            if (who(ptr, m, one, used) == -1)
                l = m;
            else
                r = m;
        }   

        cut[t] = r+1;

        int num = who(ptr, r, one, used);
        per[t] = num+1;
        used[num] = 1;        

        ptr = r+1;
    }   

    for (int i = 0; i < n; ++i) {
        int l = 0;
        if (i)
            l = cut[i-1];

        int r = l * one - 1;
        if (i < n - 1)
            r = cut[i]-1;
        
        int num = per[i]-1;
    
        if (mult(cost(num, l, r, one), n) < sum[num]*n)
            exit(1);
    }   

    for (int i = 0; i < n - 1; ++i) 
        cout << cut[i] << ' ' << one << endl;
    for (auto e : per)
        cout << e << ' ';
    cout << endl;
    exit(0);   
}   
 
signed main() {
    #ifdef HOME
    freopen("input.txt", "r", stdin);
    #else
    #define endl '\n'
    ios_base::sync_with_stdio(0); cin.tie(0);
    #endif
    
    cin >> n >> L;
    for (int i = 0; i < n; ++i) {
        for (int j = 0; j < L; ++j) {
            cin >> a[i][j];
            sum[i] += a[i][j];
        }
    }

    for (int i = 0; i < n; ++i) {
        for (int j = 0; j < L; ++j) {
            check(n * a[i][j]);
        }   
    }
    
    exit(1);
}

Subtask #1
0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 5 ms 384 KB Output is correct
2 Runtime error 10 ms 512 KB Execution killed with signal 11 (could be triggered by violating memory limits)
3 Halted 0 ms 0 KB -

Subtask #2
24.0 / 24.0

# 결과 실행 시간 메모리 Grader output
1 Correct 5 ms 384 KB Output is correct
2 Correct 5 ms 384 KB Output is correct
3 Correct 5 ms 384 KB Output is correct
4 Correct 5 ms 512 KB Output is correct
5 Correct 6 ms 384 KB Output is correct
6 Correct 5 ms 384 KB Output is correct
7 Correct 5 ms 384 KB Output is correct
8 Correct 5 ms 384 KB Output is correct
9 Correct 6 ms 384 KB Output is correct
10 Correct 5 ms 384 KB Output is correct
11 Correct 5 ms 384 KB Output is correct
12 Correct 4 ms 384 KB Output is correct
13 Correct 5 ms 384 KB Output is correct
14 Correct 5 ms 512 KB Output is correct
15 Correct 5 ms 512 KB Output is correct
16 Correct 5 ms 512 KB Output is correct
17 Correct 5 ms 384 KB Output is correct
18 Correct 5 ms 384 KB Output is correct
19 Correct 6 ms 384 KB Output is correct
20 Correct 5 ms 384 KB Output is correct
21 Correct 6 ms 384 KB Output is correct
22 Correct 5 ms 512 KB Output is correct
23 Correct 4 ms 384 KB Output is correct
24 Correct 5 ms 384 KB Output is correct
25 Correct 5 ms 384 KB Output is correct
26 Correct 5 ms 384 KB Output is correct
27 Correct 5 ms 384 KB Output is correct

Subtask #3
0 / 71.0

# 결과 실행 시간 메모리 Grader output
1 Correct 5 ms 384 KB Output is correct
2 Runtime error 10 ms 512 KB Execution killed with signal 11 (could be triggered by violating memory limits)
3 Halted 0 ms 0 KB -