제출 #481917

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
481917		Yazan_Alattar	Table Tennis (info1cup20_tabletennis)	C++14	컴파일 에러	0 ms	0 KiB

tabletennis

#include <iostream>
#include <fstream>
#include <vector>
#include <cstring>
#include <algorithm>
#include <set>
#include <map>
#include <queue>
#include <list>
#include <utility>
#include <cmath>
#include <numeric>
using namespace std;
typedef long long ll;
#define F first
#define S second
#define pb push_back
#define endl "\n"
#define all(x) x.begin(), x.end()
const int M = 200007;
const ll inf = 1e18;
const ll mod = 1e9 + 7;
const double pi = acos(-1);
const int dx[] = {1, 0, -1, 0}, dy[] = {0, 1, 0, -1};

vector <int> v;
int n, k, a[M];

int solve(int sum)
{
    v.clear();
    int l = 1, r = n + k;
    while(l < r){
        if(v.size() == n) break;
        if(a[l] + a[r] == sum){
            v.pb(l);
            v.pb(r);
            ++l;
            --r;
        }
        else if(a[l] + a[r] > sum) --r;
        else ++l;
    }
    return ((int)v.size() == n);
}

int main()
{
    ios::sync_with_stdio(0);cin.tie(0);cout.tie(0);
    cin >> n >> k;
    for(int i = 1; i <= n + k; ++i) cin >> a[i];
    sort(a + 1, a + n + k + 1);
    int res = 0;
    for(int i = 1; i <= 2 * k + 50; ++i){
            res = solve(a[i] + a[i + 1]);
            if(res) break;
        }
        if(res) break;
    }
    sort(all(v));
    for(auto i : v) cout << a[i] << " ";
    cout << endl;
    return 0;
}
// Don't forget special cases. (n = 1?)
// Look for the constraints. (Runtime array? overflow?)

컴파일 시 표준 에러 (stderr) 메시지

tabletennis.cpp: In function 'int solve(int)':
tabletennis.cpp:34:21: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   34 |         if(v.size() == n) break;
      |            ~~~~~~~~~^~~~
tabletennis.cpp: In function 'int main()':
tabletennis.cpp:58:17: error: break statement not within loop or switch
   58 |         if(res) break;
      |                 ^~~~~
tabletennis.cpp: At global scope:
tabletennis.cpp:60:9: error: expected constructor, destructor, or type conversion before '(' token
   60 |     sort(all(v));
      |         ^
tabletennis.cpp:61:5: error: expected unqualified-id before 'for'
   61 |     for(auto i : v) cout << a[i] << " ";
      |     ^~~
tabletennis.cpp:62:5: error: 'cout' does not name a type
   62 |     cout << endl;
      |     ^~~~
tabletennis.cpp:63:5: error: expected unqualified-id before 'return'
   63 |     return 0;
      |     ^~~~~~
tabletennis.cpp:64:1: error: expected declaration before '}' token
   64 | }
      | ^