제출 #57863

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
57863		okaybody10	Teams (CEOI11_tea)	C++98	0 / 100	2557 ms	73480 KiB

tea

#include <bits/stdc++.h>
using namespace std;
typedef pair<int,int> pii;
vector<int> ans[1000006];
pii v[1000006];
int idx=0,pos,copyidx;
void q2()
{
    copyidx=idx;
    while(v[pos].first>pos+1 && pos>0) { ans[copyidx][0]++,ans[copyidx].push_back(v[pos--].second); if(--copyidx<0) copyidx=idx; }
}
void q1()
{
    ans[idx].push_back(v[pos].first);
    for(int i=0;i<ans[idx][0];i++) ans[idx].push_back(v[pos--].second);
    idx++;
}
int main()
{
    int n; scanf("%d",&n);
    for(int i=0;i<n;i++) scanf("%d",&v[i].first),v[i].second=i+1;
    sort(v,v+n);
    pos=n-1;
    while(pos>=0)
    {
        if(v[pos].first>pos+1) q2();
        else q1();
    }
    printf("%d\n",idx);
    for(int i=0;i<idx;i++)
    {
        printf("%d ",ans[i][0]);
        for(int j=0;j<ans[i][0];j++) printf("%d ",ans[i][j+1]);
        printf("\n");
    }
}

컴파일 시 표준 에러 (stderr) 메시지

tea.cpp: In function 'int main()':
tea.cpp:20:17: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     int n; scanf("%d",&n);
            ~~~~~^~~~~~~~~
tea.cpp:21:49: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     for(int i=0;i<n;i++) scanf("%d",&v[i].first),v[i].second=i+1;
                          ~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~

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