Submission #64719

#	Time	Username	Problem	Language	Result	Execution time	Memory
64719		bazsi700	Carnival (CEOI14_carnival)	C++14	Compilation error	0 ms	0 KiB

carnival

#include <bits/stdc++.h>

using namespace std;
#define ll long long

int col[151];

int query(vector<int> &v) {
    cout << v.size() << " "
    for(int el : v) {
        cout << el << " ";
    }
    cout << "\n" << flush;
    int x;
    cin >> x;
    return x;
}

bool hasmatch(vector<int> &v, int x) {
    if(v.size() == 1) {
        v.push_back(x);
        int a1 = query(v);
        v.pop_back();
        return (a1 == 1);
    }
    int a1 = query(v);
    v.push_back(i);
    int a2 = query(x);
    v.pop_back();
    return (a1 == a2);
}

void solve(vector<int> &v, int x, int currcol) {
    if(!hasmatch(v,x)) {
        return;
    }
    if(v.size() == 1) {
        col[v][0] = currcol;
        return;
    }
    vector<int> v1 (v.size()/2);
    vector<int> v2 (v.size()-v.size()/2);
    for(int i = 0; i < v.size()/2; i++) {
        v1[i] = v[i];
    }
    for(int i = 0; i < v.size()-v.size()/2; i++) {
        v2[i] = v[i+v.size()/2];
    }
    solve(v1,x,currcol);
    solve(v2,x,currcol);
}

int main()
{
    ios::sync_with_stdio(false);
    cin.tie(0);
    int n;
    cin >> n;
    int newcol = 1;
    for(int i = 1; i <= n; i++) {
        if(col[i] != 0) {
            continue;
        }
        vector<int> v (n-i);
        for(int j = i+1; j <= n; j++) {
            v[j-i-1] = j;
        }
        col[i] = newcol;
        solve(v,i,newcol++);


    }
    cout << "0 ";
    for(int i = 1; i <= n; i++) {
        cout << col[i] << " ";
    }
    return 0;
}

Compilation message (stderr)

carnival.cpp: In function 'int query(std::vector<int>&)':
carnival.cpp:10:5: error: expected ';' before 'for'
     for(int el : v) {
     ^~~
carnival.cpp: In function 'bool hasmatch(std::vector<int>&, int)':
carnival.cpp:27:17: error: 'i' was not declared in this scope
     v.push_back(i);
                 ^
carnival.cpp:28:21: error: invalid initialization of reference of type 'std::vector<int>&' from expression of type 'int'
     int a2 = query(x);
                     ^
carnival.cpp:8:5: note: in passing argument 1 of 'int query(std::vector<int>&)'
 int query(vector<int> &v) {
     ^~~~~
carnival.cpp: In function 'void solve(std::vector<int>&, int, int)':
carnival.cpp:38:12: error: no match for 'operator[]' (operand types are 'int [151]' and 'std::vector<int>')
         col[v][0] = currcol;
            ^
carnival.cpp:43:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for(int i = 0; i < v.size()/2; i++) {
                    ~~^~~~~~~~~~~~
carnival.cpp:46:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for(int i = 0; i < v.size()-v.size()/2; i++) {
                    ~~^~~~~~~~~~~~~~~~~~~~~