oj.uz

Submission #57446

# Submission time Handle Problem Language Result Execution time Memory
57446 2018-07-15T05:03:50 Z 강태규(#1669) Teams (CEOI11_tea) C++11
80 / 100
 942 ms 111196 KB 
#include <iostream>
#include <algorithm>
#include <vector>
#include <queue>
#include <deque>
#include <set>
#include <map>
#include <unordered_map>
#include <functional>
#include <cstring>
#include <cmath>
#include <ctime>
#include <cstdlib>

using namespace std;
typedef long long llong;
typedef long double ld;
typedef pair<int, int> pii;
typedef pair<llong, llong> pll;

const int inf = 1e7;
int n;
pii a[1000001];
int dp[1000001];
int pr[1000001];
int par[1000001][20];
int main() {
    scanf("%d", &n);
    for (int i = 1; i <= n; ++i) {
        int x;
        scanf("%d", &x);
        a[i] = pii(x, i);
    }
    sort(a + 1, a + (n + 1));
    for (int i = 1; i <= n; ++i) {
        int x = i - a[i].first;
        if (x < 0) {
            dp[i] = inf;
        }
        else {
            for (int j = 20; j--; ) {
                int y = par[x][j];
                if (y == 0) continue;
                int z = par[y][0];
                if (max(dp[y], i - y) > max(dp[z], i - z)) x = y;
            }
            x = par[x][0];
            if (max(dp[x], i - x) > max(dp[i - a[i].first], a[i].first))
                x = i - a[i].first;
            
            dp[i] = max(dp[x], i - x);
            pr[i] = x;
        }
        par[i][0] = i - 1;
        while (par[i][0] && dp[i] <= dp[par[i][0]]) par[i][0] = par[par[i][0]][0];
        for (int j = 1; j < 20; ++j) par[i][j] = par[par[i][j - 1]][j - 1];
    }
    vector<pii> ans;
    for (int i = n; i > 0; i = pr[i]) {
        ans.emplace_back(pr[i], i);
    }
    printf("%d\n", (int)ans.size());
    for (pii i : ans) {
        printf("%d", i.second - i.first);
        for (int j = i.first + 1; j <= i.second; ++j) {
            printf(" %d", a[j].second);
        }
        printf("\n");
    }
	return 0;
}

Compilation message

tea.cpp: In function 'int main()':
tea.cpp:28:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d", &n);
     ~~~~~^~~~~~~~~~
tea.cpp:31:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%d", &x);
         ~~~~~^~~~~~~~~~

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 288 KB Output is correct
2 Correct 2 ms 416 KB Output is correct
3 Correct 2 ms 432 KB Output is correct
4 Correct 2 ms 432 KB Output is correct
5 Correct 2 ms 608 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 608 KB Output is correct
2 Correct 0 ms 608 KB Output is correct
3 Correct 2 ms 608 KB Output is correct

Subtask #3
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 7 ms 608 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #4
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 5 ms 1072 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #5
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 1104 KB Output is correct
2 Correct 6 ms 1104 KB Output is correct

Subtask #6
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 58 ms 8544 KB Output is correct
2 Correct 45 ms 8544 KB Output is correct

Subtask #7
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 71 ms 9508 KB Output is correct
2 Correct 58 ms 9508 KB Output is correct
3 Correct 57 ms 9508 KB Output is correct

Subtask #8
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 642 ms 76048 KB Output is correct
2 Correct 427 ms 76416 KB Output is correct
3 Correct 508 ms 76416 KB Output is correct

Subtask #9
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 756 ms 100884 KB Output is correct
2 Correct 536 ms 111196 KB Output is correct
3 Correct 526 ms 111196 KB Output is correct
4 Correct 760 ms 111196 KB Output is correct

Subtask #10
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 752 ms 111196 KB Output is correct
2 Correct 468 ms 111196 KB Output is correct
3 Correct 576 ms 111196 KB Output is correct
4 Correct 942 ms 111196 KB Output is correct