Submission #76790

#	Time	Username	Problem	Language	Result	Execution time	Memory
76790		kdh9949	Teams (CEOI11_tea)	C++17	0 / 100	340 ms	36704 KiB

tea

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

const int N = 1000005;

int n, a[N], p[N];
vector<vector<int>> r;

int main(){
    scanf("%d", &n);
    for(int i = 0; i < n; i++) scanf("%d", a + i);
    iota(p, p + n, 0);
    sort(p, p + n, [](int x, int y){ return a[x] > a[y]; });
    for(int i = 0, j; i < n; i += j){
        j = a[p[i]];
        if(i + j > n){
            for(int k = i, c = r.size() - 1; k < n; k++, c--){
                if(c < 0) c = r.size() - 1;
                r[c].push_back(p[k] + 1);
            }
            break;
        }
        r.push_back(vector<int>());
        for(int k = i; k < i + j; k++) r.back().push_back(p[k] + 1);
    }
    printf("%d\n", r.size());
    for(const vector<int> &i : r){
        printf("%d ", i.size());
        for(int j : i) printf("%d ", j);
        puts("");
    }
}

Compilation message (stderr)

tea.cpp: In function 'int main()':
tea.cpp:26:28: warning: format '%d' expects argument of type 'int', but argument 2 has type 'std::vector<std::vector<int> >::size_type {aka long unsigned int}' [-Wformat=]
     printf("%d\n", r.size());
                    ~~~~~~~~^
tea.cpp:28:31: warning: format '%d' expects argument of type 'int', but argument 2 has type 'std::vector<int>::size_type {aka long unsigned int}' [-Wformat=]
         printf("%d ", i.size());
                       ~~~~~~~~^
tea.cpp:10:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d", &n);
     ~~~~~^~~~~~~~~~
tea.cpp:11:37: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     for(int i = 0; i < n; i++) scanf("%d", a + 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
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• Subtask 9: 0 / 10
• Subtask 10: 0 / 10