제출 #705193

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
705193		bin9638	Teams (IOI15_teams)	C++17	34 / 100	4078 ms	49332 KiB

teams

#include <bits/stdc++.h>

using namespace std;

#define ll long long
#define fs first
#define sc second
#define N 500010
#define pb push_back
#define ii pair<int,int>

int n,cnt[N],l[N],r[N];
multiset<int>s;
vector<int>lis[N];

void init(int sl,int a[],int b[])
{
    n=sl;
    for(int i=1;i<=n;i++)
    {
        l[i]=a[i-1];
        r[i]=b[i-1];
    }
    for(int i=1;i<=n;i++)
    {
        lis[l[i]].pb(r[i]);
    }
}

int can(int m,int sz[])
{
    memset(cnt,0,sizeof(cnt));
    for(int i=0;i<m;i++)
        cnt[sz[i]]++;
    s.clear();
    for(int i=1;i<=n;i++)
    {
        for(auto u:lis[i])
            s.insert(u);
        while(!s.empty()&&*s.begin()<i)
            s.erase(s.begin());
        if(1ll*cnt[i]*i>s.size())
            return 0;
        for(ll j=1ll*cnt[i]*i;j>=1;j--)
            s.erase(s.begin());
    }
    return 1;
}

#ifdef SKY
int main()
{
    freopen("A.inp","r",stdin);
    freopen("A.out","w",stdout);
  //  ios::sync_with_stdio(0);
   // cin.tie(NULL);
   // cout.tie(NULL);
    int n;
    cin>>n;
    int a[n],b[n];
    for(int i=0;i<n;i++)
        cin>>a[i]>>b[i];
    init(n,a,b);
    int q;
    cin>>q;
    while(q--)
    {
        int m;
        cin>>m;
        int k[m];
        for(int j=0;j<m;j++)
            cin>>k[j];
        cout<<can(m,k)<<endl;
    }
    return 0;
}
#endif // SKY

컴파일 시 표준 에러 (stderr) 메시지

teams.cpp: In function 'int can(int, int*)':
teams.cpp:42:24: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::multiset<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   42 |         if(1ll*cnt[i]*i>s.size())
      |            ~~~~~~~~~~~~^~~~~~~~~

• Subtask 1: 21 / 21
• Subtask 2: 13 / 13
• Subtask 3: 0 / 43
• Subtask 4: 0 / 23