题解

63 条题解

  • 0
    @ 2015-10-03 12:24:30

    队列
    #include <iostream>
    #include <queue>
    using namespace std;

    int main(){
    int max,len;
    cin>>max>>len;
    int word[1001]={0};
    queue <int> q;
    int flag=0;
    int temp;
    for(int i=0;i<len;i++){
    cin>>temp;
    if(word[temp]==0){
    word[temp]=1;
    q.push(temp);
    if(int(q.size())>max){
    temp=q.front();
    word[temp]=0;
    q.pop();
    }
    flag++;
    }
    }
    cout<<flag;
    return 0;
    }

  • 0
    @ 2015-10-02 20:49:44

    /*

    Author : Slience_K
    Belong : C++
    Pro : NOIP 2010 - 1

    */
    #include <cstdio>
    #include <algorithm>
    using namespace std;
    int n , m , tot , x , ans , dic[ 105 ];
    void Check(){
    for( int i = 1 ; i <= tot ; i++ )
    if ( dic[ i ] == x ) return;
    ans++;
    if ( tot < m ) dic[ ++tot ] = x;
    else{
    for( int i = 1 ; i < m ; i++ )
    dic[ i ] = dic[ i + 1 ];
    dic[ m ] = x;
    }
    }
    int main(){
    scanf( "%d%d" , &m , &n );
    for( int i = 1 ; i <= n ; i++ ){
    scanf( "%d" , &x );
    Check();
    }
    printf( "%d" , ans );
    return 0;
    }

  • 0
    @ 2015-09-27 07:48:25

    不明白为什么要用队列什么的。。明明乱搞一下就好了qwq
    #include<cstdio>
    #include<cstring>
    #include<algorithm>
    #include<iostream>
    using namespace std;
    int q[1005],v[1005];
    int main(){
    int n,m;
    scanf("%d%d",&n,&m);
    int ans=0;
    while(m--){
    int x;
    scanf("%d",&x);
    if(v[x]) continue;
    ans++;
    v[x]=1;
    q[++q[0]]=x;
    if(q[0]>n) v[q[q[0]-n]]=0;
    }
    printf("%d\n",ans);
    return 0;
    }

  • 0
    @ 2015-08-19 18:37:27

    #include<cstdio>
    #include<queue>
    #include<set>
    using namespace std;

    queue<int>q;
    set<int>s;

    int main()
    {
    int n, m, num, ans = 0;
    scanf("%d%d", &m, &n);
    for(int i=1; i<=n; i++){
    scanf("%d", &num);
    if(s.count(num))
    continue;
    else{
    ans++;
    q.push(num);
    s.insert(num);
    if(s.size() > m){
    s.erase(q.front());
    q.pop();
    }

    }

    }

    printf("%d", ans);
    return 0;
    }
    STL

  • 0
    @ 2015-06-26 16:44:27

    库容器版本
    #include<cstdio>
    #include<set>
    #include<queue>
    using namespace std;

    set<int> S;
    queue<int> Q;
    int m,n,t,ans;

    int main()
    {
    scanf("%d%d",&m,&n);
    for(int i=0;i<n;i++)
    {
    scanf("%d",&t);
    if(!S.count(t))
    {
    Q.push(t);
    if(S.size()==m)
    {
    S.erase(Q.front());
    Q.pop();
    }
    S.insert(t);
    ans++;
    }
    }
    printf("%d",ans);
    return 0;
    }

  • 0
    @ 2015-05-09 16:48:25

    队列的应用。
    范围很小,所以暴力查找+暴力维护左右端点就行了,不用循环队列。

    Pascal Code

    var
    q:array[-1000..2000] of longint;
    s,e,i,j,w,ans,m,n:longint;
    flag:boolean;
    function size:longint;
    begin
    exit(e-s+1);
    end;
    begin
    readln(m,n);
    s:=1;
    e:=0;
    ans:=0;
    fillchar(q,sizeof(q),0);
    for i:=1 to n do
    begin
    read(w);
    flag:=false;

    for j:=s to e do
    if q[j]=w then flag:=true;
    if not flag //内存中没有
    then begin
    ans:=ans+1;
    e:=e+1;
    q[e]:=w;
    if size>m then s:=s+1; //出队列
    end;
    end;
    writeln(ans);
    end.

  • 0
    @ 2014-11-25 10:38:21

    #include<iostream>
    using namespace std;
    main()
    {
    bool b;
    int a[101],c=0,i,j,k,l=1,m,n;
    cin>>n>>m;
    for(i=1;i<=n;i++)
    a[i]=-1;
    for(i=1;i<=m;i++)
    {
    b=1;
    cin>>j;
    for(k=1;k<=n;k++)
    if(a[k]==j)
    {
    b=0;
    break;
    }
    if(b)
    {
    c++;
    a[l++]=j;
    if(l==n+1)
    l=1;
    }
    }
    cout<<c;
    }

  • 0
    @ 2014-11-04 20:04:14

    那要写那么麻烦啊
    那要写那么麻烦啊

    #include<iostream>

    using namespace std;

    int n,m;
    int v[1005];
    int ans;
    int num,sub;

    int main()
    {
    cin>>n>>m;
    for(int i=0,k;i<m;i++)
    {
    cin>>k;
    if(v[k]<=sub) v[k]=++num,sub+=(num-sub-1==n),ans++;
    }
    cout<<ans;
    return 0;
    }

    这不就是了

    • @ 2015-10-03 16:47:48

      sub+=(num-sub-1==n)
      请问这句什么意思啊?

  • 0
    @ 2014-11-03 11:02:37

    #include <iostream>
    #include<cstdio>
    #include<algorithm>
    using namespace std;
    int a[1001],b[1001];
    int main()
    {
    int n,m,t,s=1,sum=0;
    cin>>m>>n;
    for(int i=0;i<=1000;i++) a[i]=-1;
    for(int i=1;i<=n;i++)
    {
    cin>>t;
    if(b[t]==1) continue;
    if(s>m) s=s-m;
    if(a[s]!=-1) b[a[s]]=0;
    a[s]=t;
    b[t]=1;
    s++;
    sum++;
    }
    cout<<sum<<endl;
    return 0;
    }

  • 0
    @ 2014-11-03 11:02:13

    #include <iostream>
    #include <cstdio>
    #include <cmath>
    #include <deque>
    using namespace std;
    int N=0,M=0;
    int num[1000+5];
    deque<int> q;
    int main()
    {
    int tot=0;
    scanf("%d%d",&M,&N);
    for(int i=0;i!=N;++i)
    cin>>num[i];
    for(int i=0;i!=N;++i)
    {
    int flag=0;
    for(int j=0;j!=q.size();++j)
    if(num[i]==q[j])
    {
    flag=1;
    break;
    }
    if(flag==0)
    {
    tot++;
    if(q.size()+1>M)
    {
    q.pop_front();
    q.push_back(num[i]);
    }
    else
    q.push_back(num[i]);
    }
    }
    cout<<tot<<endl;
    return 0;
    }

  • 0
    @ 2014-11-03 11:01:29

    #include <iostream>
    #include<cstdio>
    #include<algorithm>
    using namespace std;
    int a[1001],b[1001];
    int main()
    {
    int n,m,t,s=1,sum=0;
    cin>>m>>n;
    for(int i=0;i<=1000;i++) a[i]=-1;
    for(int i=1;i<=n;i++)
    {
    cin>>t;
    if(b[t]==1) continue;
    if(s>m) s=s-m;
    if(a[s]!=-1) b[a[s]]=0;
    a[s]=t;
    b[t]=1;
    s++;
    sum++;
    }
    cout<<sum<<endl;
    return 0;
    }

  • 0
    @ 2014-10-30 15:21:36

    #include <iostream>
    #include <cstdio>
    #include <cmath>
    #include <deque>
    using namespace std;
    int N=0,M=0;
    int num[1000+5];
    deque<int> q;
    int main()
    {
    int tot=0;
    scanf("%d%d",&M,&N);
    for(int i=0;i!=N;++i)
    cin>>num[i];
    for(int i=0;i!=N;++i)
    {
    int flag=0;
    for(int j=0;j!=q.size();++j)
    if(num[i]==q[j])
    {
    flag=1;
    break;
    }
    if(flag==0)
    {
    tot++;
    if(q.size()+1>M)
    {
    q.pop_front();
    q.push_back(num[i]);
    }
    else
    q.push_back(num[i]);
    }
    }
    cout<<tot<<endl;
    return 0;
    }

  • 0
    @ 2014-08-28 16:53:52

    大水题 一次AC!
    #include <iostream>

    using namespace std;
    bool findw(int word,int memory[],int front,int tail)
    {
    for(int i = front; i < tail; ++i)
    {
    if(memory[i] == word)
    return true;
    }
    return false;
    }
    int main()
    {
    int m,n;

    std::cin>>m>>n;
    int memory[10000] = {0};
    int front = 0;
    int tail = 0;

    int word[n];
    for(int i = 0; i < n; ++i)
    std::cin>>word[i];
    int cnt = 0;
    for(int i = 0; i < n; ++i)
    {
    if(!findw(word[i],memory,front,tail))
    {
    cnt++;
    if(tail - front == m)
    {
    front++;
    memory[tail++] = word[i];
    }
    else
    memory[tail++] = word[i];
    }
    }
    std::cout<<cnt;
    return 0;
    }

  • 0
    @ 2014-08-09 23:44:12

    第一眼看到想用队列做,不过觉得太没有技术含量,所以就拿链表做了。其实这题也可以开个0~1000的数组 arr , 其中 arr [ i ] 表示单词 i 的存储次序,0表示不存在。输入单词 k 后,查找 arr [ k ] 是否为0,若不为0,则 arr [ k ]=当前次序。随后再从 arr[ 0 ]一直搜到 arr [ 1000 ] ,若大于最大内存限制则置0。不过说到底还是链表好,省空间省时间嘛。 (下面附上代码)

    #include <stdio.h>
    #include <stdlib.h>
    struct node{
    int data;
    struct node *next;
    };
    int main(){
    struct node *head,*current;
    int memorySize,length;
    int word=0,count=0,index=0,flag=0;

    head=(struct node *)malloc(sizeof(struct node));
    head->next=NULL;
    scanf("%d %d",&memorySize,&length);

    for(;length>0;length--){
    scanf("%d",&word);
    index=flag=1;
    current=head;
    while(current->next!=NULL){
    current=current->next;
    if(current->data==word){
    flag=0;
    break;
    }
    index++;
    }
    if(flag){
    count++;
    current->next=(struct node *)malloc(sizeof(struct node));
    current->next->data=word;
    current->next->next=NULL;
    if(count==1)
    head->next=current->next;
    if(index>memorySize){
    current=head->next->next;
    free(head->next);
    head->next=current;
    }
    }
    }
    printf("%d\n",count);
    return 0;
    }

  • 0
    @ 2014-08-02 08:09:28

    #include <cstdio>
    using namespace std;
    int q[10004];
    bool inq[1003];
    int ans=0,m,n;
    int main()
    {
    scanf("%d%d",&m,&n);
    int l=0,r=0;
    for (int i=1,x;i<=n;i++)
    {
    scanf("%d",&x);
    if (inq[x]) continue;
    ans++;
    if (r-l<m) q[++r]=x,inq[x]=true;
    else
    {
    ++l,inq[q[l]]=false;
    q[++r]=x,inq[x]=true;
    }
    }
    printf("%d\n",ans);
    return 0;
    }

  • 0
    @ 2014-07-19 15:36:11

    #include<cstdio>
    #include<deque>
    #include<algorithm>
    #define IOFileName "translate"
    using namespace std;
    int n,m,ans=0,ipt;
    deque<int>d;
    int main(){
    //freopen(IOFileName".in","r",stdin);
    //freopen(IOFileName".out","w",stdout);
    scanf("%d %d\n",&n,&m);
    for(int i=0;i<m;i++){
    scanf("%d ",&ipt);
    if(find(d.begin(),d.end(),ipt)==d.end()){
    d.push_back(ipt);
    ans++;
    if((int)d.size()>n){
    d.pop_front();
    }
    }
    }
    printf("%d\n",ans);
    }
    90MS+264KB

  • 0
    @ 2014-01-01 12:01:50

    Vijos 题解:http://hi.baidu.com/umule/item/2c997f8ed9600fdae596e017
    有疑问请留言 共同进步

  • 0
    @ 2013-11-03 12:37:19

    #include <cstdio>
    #include <queue>
    #include <cstring>

    using namespace std;

    #define MAXN 1001

    bool f[MAXN];
    queue<int>Q;
    int n,m,ans=0,x;

    int main() {
    scanf("%d%d",&m,&n);
    memset(f,false,sizeof(f));
    while (!Q.empty()) Q.pop();
    while (n--) {
    scanf("%d",&x);
    if (!f[x]) {
    ans++,f[x]=true;
    if (Q.size()>=m) {
    f[Q.front()]=false;
    Q.pop();
    }
    Q.push(x);
    }
    }
    printf("%d\n",ans);
    return 0;
    }

  • 0
    @ 2013-11-03 12:36:13

    水题。。。
    #include <cstdio>
    #include <queue>
    #include <cstring>

    using namespace std;

    #define MAXN 1001

    bool f[MAXN];
    queue<int>Q;
    int n,m,ans=0,x;

    int main() {
    scanf("%d%d",&m,&n);
    memset(f,false,sizeof(f));
    while (!Q.empty()) Q.pop();
    while (n--) {
    scanf("%d",&x);
    if (!f[x]) {
    ans++,f[x]=true;
    if (Q.size()>=m) {
    f[Q.front()]=false;
    Q.pop();
    }
    Q.push(x);
    }
    }
    printf("%d\n",ans);
    return 0;
    }

  • 0
    @ 2013-10-08 14:58:10

    开始犯了些sb 的错误- =
    AC:
    var
    tu,ch:array[0..1001] of integer;
    m,n,i,j,l,r,t,b:longint;

    begin
    readln(m,n);
    for i:=1 to n do begin
    read(j);
    if ch[j]=1 then continue else begin
    inc(t);inc(r); tu[t]:=j; ch[j]:=1;
    if t=m+b+1 then begin
    inc(b); ch[tu[b]]:=0;
    end;
    end;
    end; writeln(r);
    end.

信息

ID
1774
难度
4
分类
模拟 点击显示
标签
递交数
3064
已通过
1231
通过率
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被复制
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