Submission #298190

#	Time	Username	Problem	Language	Result	Execution time	Memory
298190		evpipis	Teams (CEOI11_tea)	C++11	0 / 100	2594 ms	17212 KiB

tea

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

#define fi first
#define se second
#define pb push_back
#define mp make_pair
typedef long long ll;
typedef pair<int, int> ii;

const int len = 1e6+5, inf = 1e9;
int opt[len], dp[len];
ii arr[len];

int main(){
    int n;
    scanf("%d", &n);
    for (int i = 1; i <= n; i++)
        scanf("%d", &arr[i].fi), arr[i].se = i;

    sort(arr+1, arr+1+n);

    for (int i = 1; i <= n; i++){
        dp[i] = -inf;
        for (int j = 0; j <= i-arr[i].fi; j++)
            if (dp[j] != -inf && dp[j]+1 >= dp[i])
                dp[i] = dp[j]+1, opt[i] = j;
    }

    printf("%d\n", dp[n]);

    int i = n;
    while (i > 0){
        int j = opt[i];
        printf("%d", i-j);
        while (i > j){
            printf(" %d", arr[i].se);
            i--;
        }
        printf("\n");
    }
    return 0;
}

Compilation message (stderr)

tea.cpp: In function 'int main()':
tea.cpp:17:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   17 |     scanf("%d", &n);
      |     ~~~~~^~~~~~~~~~
tea.cpp:19:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   19 |         scanf("%d", &arr[i].fi), arr[i].se = i;
      |         ~~~~~^~~~~~~~~~~~~~~~~~

• Subtask 1: 0 / 10
• Subtask 2: 0 / 10
• Subtask 3: 0 / 10
• Subtask 4: 0 / 10
• Subtask 5: 0 / 10
• Subtask 6: 0 / 10
• Subtask 7: 0 / 10
• Subtask 8: 0 / 10
• Subtask 9: 0 / 10
• Subtask 10: 0 / 10