Submission #264061

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
264061	2020-08-14T04:56:26 Z	반딧불(#5094)	Teams (CEOI11_tea)	C++17	0 / 100	400 ms	23248 KB

#include <bits/stdc++.h>

using namespace std;

typedef long long ll;

int n;
vector<pair<int, int> > v;
int teamCnt;

vector<int> vec;

bool able(int sz){
    if(sz * teamCnt < n) return false;
    return true;
}

int main(){
    scanf("%d", &n);
    for(int i=1; i<=n; i++){
        int x;
        scanf("%d", &x);
        v.push_back({x, i});
    }

    sort(v.begin(), v.end());
    reverse(v.begin(), v.end());

    for(int i=0; i<n; ){
        if(i + v[i].first <= n){
            teamCnt++;
            i = i + v[i].first;
        }
        else break;
    }

    printf("%d\n", teamCnt);

    int l = v[0].first, r = n, ans = v[0].first;
    while(l <= r){
        int m = (l+r)>>1;
        if(able(m)){
            ans = m;
            r = m-1;
        }
        else l = m+1;
    }

    int j = 0;
    for(int i=1; i<=teamCnt; i++){
        vec.clear();
        for(; j<i*ans && j<n-(teamCnt-i); j++){
            vec.push_back(v[j].second);
        }

        printf("%d ", (int)vec.size());
        for(auto &x: vec) printf("%d ", x);
        puts("");
    }
}

Compilation message

tea.cpp: In function 'int main()':
tea.cpp:19:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   19 |     scanf("%d", &n);
      |     ~~~~~^~~~~~~~~~
tea.cpp:22:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   22 |         scanf("%d", &x);
      |         ~~~~~^~~~~~~~~~

Subtask #1
0 / 10.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	256 KB	Output is correct
2	Incorrect	0 ms	256 KB	Output isn't correct
3	Halted	0 ms	0 KB	-

Subtask #2
0 / 10.0

#	Verdict	Memory	Grader output
1	Correct	256 KB	Output is correct
2	Incorrect	256 KB	Output isn't correct
3	Halted	0 KB	-

Subtask #3
0 / 10.0

#	Verdict	Execution time	Memory	Grader output
1	Incorrect	1 ms	256 KB	Output isn't correct
2	Halted	0 ms	0 KB	-

Subtask #4
0 / 10.0

#	Verdict	Execution time	Memory	Grader output
1	Incorrect	2 ms	384 KB	Output isn't correct
2	Halted	0 ms	0 KB	-

Subtask #5
0 / 10.0

#	Verdict	Execution time	Memory	Grader output
1	Incorrect	3 ms	384 KB	Output isn't correct
2	Halted	0 ms	0 KB	-

Subtask #6
0 / 10.0

#	Verdict	Execution time	Memory	Grader output
1	Incorrect	33 ms	1652 KB	Output isn't correct
2	Halted	0 ms	0 KB	-

Subtask #7
0 / 10.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	38 ms	1644 KB	Output is correct
2	Incorrect	25 ms	1528 KB	Output isn't correct
3	Halted	0 ms	0 KB	-

Subtask #8
0 / 10.0

#	Verdict	Execution time	Memory	Grader output
1	Incorrect	310 ms	11472 KB	Output isn't correct
2	Halted	0 ms	0 KB	-

Subtask #9
0 / 10.0

#	Verdict	Execution time	Memory	Grader output
1	Incorrect	385 ms	16004 KB	Output isn't correct
2	Halted	0 ms	0 KB	-

Subtask #10
0 / 10.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	400 ms	19208 KB	Output is correct
2	Correct	305 ms	23248 KB	Output is correct
3	Incorrect	375 ms	15184 KB	Output isn't correct
4	Halted	0 ms	0 KB	-