Submission #25732

#	Time	Username	Problem	Language	Result	Execution time	Memory
25732		gs14004	Carnival (CEOI14_carnival)	C++11	100 / 100	39 ms	2024 KiB

carnival

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

int party(set<int> s){
    printf("%d\n", s.size());
    fflush(stdout);
    for(auto &i : s) printf("%d ", i);
    fflush(stdout);
    int ret;
    scanf("%d",&ret);
    return ret;
}

void findClothes(int N, vector<int> &C)
{
    int size[151] = {};
    int piv = 0;
    set<int> s;
    for(int i=1; i<=N; i++){
        s.insert(i);
        size[i] = party(s);
        if(size[i] == size[i-1]){
            int s = 1, e = i-1;
            while (s != e) {
                int m = (s+e)/2;
                set<int> original;
                for (int i=s; i<=m; i++) {
                    original.insert(i);
                }
                int v = party(original);
                original.insert(i);
                if(v != party(original)) s = m+1;
                else e = m;
            }
            C.push_back(C[e-1]);
        }
        else{
            C.push_back(++piv);
        }
    }
}

int main(){
    int n; cin >> n;
    vector<int> v;
    findClothes(n, v);
    printf("0\n");
    for(auto &i : v) printf("%d ", i);
}

Compilation message (stderr)

carnival.cpp: In function 'int party(std::set<int>)':
carnival.cpp:5:28: warning: format '%d' expects argument of type 'int', but argument 2 has type 'std::set<int>::size_type {aka long unsigned int}' [-Wformat=]
     printf("%d\n", s.size());
                            ^
carnival.cpp:10:21: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d",&ret);
                     ^

• Subtask 1: 20 / 20
• Subtask 2: 20 / 20
• Subtask 3: 20 / 20
• Subtask 4: 20 / 20
• Subtask 5: 20 / 20