题解

327 条题解

  • 0
    @ 2009-04-04 13:26:28

    水题,用数组就足够

    program lt;

    var a:array[0..10000] of byte;

    c,m,i,x,y,co,j:integer;

    begin

    readln(c,m); for i:=0 to c do a[i]:=1;

    for i:=1 to m do

    begin

    readln(x,y);

    for j:=x to y do

    a[j]:=0;

    end;

    for i:=0 to c do

    if a[i]=1 then co:=co+1;

    writeln(co);

    end.

  • 0
    @ 2009-03-28 21:26:41

    编译通过...

    ├ 测试数据 01:答案正确... 0ms

    ├ 测试数据 02:答案正确... 0ms

    ├ 测试数据 03:答案正确... 0ms

    ├ 测试数据 04:答案正确... 0ms

    ├ 测试数据 05:答案正确... 0ms

    ├ 测试数据 06:答案正确... 0ms

    ├ 测试数据 07:答案正确... 0ms

    ├ 测试数据 08:答案正确... 0ms

    ├ 测试数据 09:答案正确... 0ms

    ├ 测试数据 10:答案正确... 0ms

    ---|---|---|---|---|---|---|---|-

    Accepted 有效得分:100 有效耗时:0ms

    我无语了~~~

  • 0
    @ 2009-03-28 12:02:49

    用线段树秒杀....

  • 0
    @ 2009-03-28 11:07:29

    #include

    using namespace std;

    int main()

    {

    bool a[10000];

    int l,m,be[10000],en[10000],x=0;

    cin>>l>>m;

    for(int i=0;i>be[i];

    cin>>en[i];

    }

    for(int i=1;i

  • 0
    @ 2009-03-26 21:36:27

    埃,算错了一步,AC率直掉.......

  • 0
    @ 2009-03-13 19:15:07

    var

    a,b,s,m,n,i,j:integer;

    arr:array[0..10000] of integer;

    begin

    read(a,b);readln;

    for i:=0 to a do arr[i]:=1;

    for i:=1 to b do

    begin

      read(m,n);readln;

      for j:=m to n do arr[j]:=0;

    end;

    s:=0;

    for i:=0 to a do if arr[i]=1 then s:=s+1;

    write(s);

    end.

  • 0
    @ 2009-03-05 00:39:23

    #include

    #include

    typedef struct _DISTRICT {

    int start;

    int end;

    int bUsed;

    }DISTRICT;

    #define MAX_DISTRICT 100

    #define TRUE 1

    #define FALSE 0

    void main()

    {

    int l, m;

    DISTRICT dis[MAX_DISTRICT];

    int start, end;

    int availDistrict = 0;

    int occupiedTree = 0;

    int i, j, k;

    memset(dis, 0, sizeof(dis));

    scanf("%d %d", &l, &m);

    for (i = 0; i < m; i++)

    {

    scanf("%d %d", &start, &end);

    // insert sort, order by dis[i].start

    for (j = 0; j < availDistrict; j++)

    {

    if (start < dis[j].start)

    {

    k = availDistrict;

    while(k > j)

    {

    dis[k].start = dis[k-1].start;

    dis[k].end = dis[k-1].end;

    k--;

    }

    break;

    }

    }

    dis[j].start = start;

    dis[j].end = end;

    dis[j].bUsed = TRUE;

    availDistrict++;

    }

    // merge overlap district

    for (i = 0; i < availDistrict - 1;)

    {

    for (j = i+1; j < availDistrict; j++)

    {

    if (dis[i].start

  • 0
    @ 2009-03-04 13:07:20

    program tree;

    var

    i,j,m,l,total,p:longint;

    a,b,c,d:array[1..10000]of longint;

    begin

    readln(l,m);

    for i:=1 to m do

    readln(a[i],b[i]);

    total:=l+1;

    for i:=0 to l do

    for j:=1 to m do

    if (i>=a[j])and(i

  • 0
    @ 2009-02-26 20:55:29

    var s,L,m,i,j,p,q,max,t:integer;

    a:array[1..100,1..2] of integer;

    b:array[1..10000] of boolean;

    begin

    read(L);

    read(m);

    for i:=1 to m do

    begin

    read(a);

    read(a);

    end;

    for i:=1 to m do

    for j:=a to a do

    b[j]:=true;

    p:=1;

    q:=1;

    for i:=1 to m do

    for j:=1 to 2 do

    begin

    max:=a[p,q];

    if a[p,q]

  • 0
    @ 2009-02-21 13:52:51

    坚决支持用布尔型,水啊!

  • 0
    @ 2009-01-16 16:15:41

    var n,m,i,a,b,j,s:longint;

    f:array[0..10000] of boolean;

    begin

    read(n,m);

    for i:=1 to m do

    begin

    read(a,b);

    for j:=a to b do f[j]:=true;

    end;

    for i:=0 to n do if f[i]true then inc(s);

    writeln(s);

    end.

    用boolean数组记录 从a到b变成true

    最后只要这个数组true就inc(s)

    注意循环要从0开始

  • 0
    @ 2009-01-15 15:00:12

    编译通过...

    ├ 测试数据 01:答案正确... 0ms

    ├ 测试数据 02:答案正确... 0ms

    ├ 测试数据 03:答案正确... 0ms

    ├ 测试数据 04:答案正确... 0ms

    ├ 测试数据 05:答案正确... 0ms

    ├ 测试数据 06:答案正确... 0ms

    ├ 测试数据 07:答案正确... 0ms

    ├ 测试数据 08:答案正确... 0ms

    ├ 测试数据 09:答案正确... 0ms

    ├ 测试数据 10:答案正确... 0ms

    ---|---|---|---|---|---|---|---|-

    Accepted 有效得分:100 有效耗时:0ms

  • 0
    @ 2008-12-30 14:29:55

    #include

    #include

    int main() {

    char tree[10001];

    int l,m,i,a,b,n;

    scanf("%d%d",&l,&m);

    memset(tree,1,l+1);

    for(i=0;i

  • 0
    @ 2008-12-20 08:34:09

    program tree;

    var

    m,l,x,i,j,k,n:integer;

    a:array[1..10000] of longint;

    begin

    n:=0;

    read(l,x);

    for i:=1 to x do

    begin

    readln(j,k);

    for m:=j to k do

    a[m]:=1

    end;

    for i:=1 to l do

    if a[i]=1 then n:=n+1;

    l:=l-n+1;

    write(l);

    end.

  • 0
    @ 2008-12-19 18:43:46

    var

    a,b,s,m,n,i,j:integer;

    arr:array[0..10000] of integer;

    begin

    read(a,b);readln;

    for i:=0 to a do arr[i]:=1;

    for i:=1 to b do

    begin

    read(m,n);readln;

    for j:=m to n do arr[j]:=0;

    end;

    s:=0;

    for i:=0 to a do if arr[i]=1 then s:=s+1;

    write(s);

    end.

  • 0
    @ 2008-12-03 13:42:00

    编译通过...

    ├ 测试数据 01:答案正确... 0ms

    ├ 测试数据 02:答案正确... 0ms

    ├ 测试数据 03:答案正确... 0ms

    ├ 测试数据 04:答案正确... 0ms

    ├ 测试数据 05:答案正确... 0ms

    ├ 测试数据 06:答案正确... 0ms

    ├ 测试数据 07:答案正确... 0ms

    ├ 测试数据 08:答案正确... 0ms

    ├ 测试数据 09:答案正确... 0ms

    ├ 测试数据 10:答案正确... 0ms

    ---|---|---|---|---|---|---|---|-

    Accepted 有效得分:100 有效耗时:0ms

    减法运用,只要你认真地想想.你就会

    var a,b,i,j,k:integer;

    c:array[1..101,1..2]of integer;

    d:array[0..10000] of integer;

    begin

    readln(a,b);

    for i:=0 to a do d[i]:=1;

    for i:=1 to b do

    begin

    readln(c,c);

    for j:=c to c do

    d[j]:=0;

    end;

    k:=0;

    for i:=0 to a do

    if d[i]=1 then k:=k+1;

    writeln(k);

    end.

  • 0
    @ 2008-11-29 15:31:54

    var a,b,i,j,k:integer;

    c:array[1..101,1..2]of integer;

    d:array[0..10000] of integer;

    begin

    readln(a,b);

    for i:=0 to a do d[i]:=1;

    for i:=1 to b do

    begin

    readln(c,c);

    for j:=c to c do

    d[j]:=0;

    end;

    k:=0;

    for i:=0 to a do

    if d[i]=1 then k:=k+1;

    writeln(k);

    end.

    一条浑浊不清的水题

  • 0
    @ 2008-11-28 20:56:05

    编译通过...

    ├ 测试数据 01:答案正确... 0ms

    ├ 测试数据 02:答案正确... 0ms

    ├ 测试数据 03:答案正确... 0ms

    ├ 测试数据 04:答案正确... 0ms

    ├ 测试数据 05:答案正确... 0ms

    ├ 测试数据 06:答案正确... 0ms

    ├ 测试数据 07:答案正确... 0ms

    ├ 测试数据 08:答案正确... 0ms

    ├ 测试数据 09:答案正确... 0ms

    ├ 测试数据 10:答案正确... 0ms

    ---|---|---|---|---|---|---|---|-

    Accepted 有效得分:100 有效耗时:0ms

  • 0
    @ 2008-11-22 22:37:04

    program p1103;

    var

    x,y:array[1..101] of longint;

    i,l,m,start,over:longint;

    procedure q_sort(l,r:longint);

    var

    i,j,mid,t:longint;

    begin

    i:=l;

    j:=r;

    mid:=x[(l+r)div 2];

    repeat

    while x[i]mid do dec(j);

    if ij;

    if il then q_sort(l,j);

    end;

    begin

    read(l,m);

    for i:=1 to m do

    read(x[i],y[i]);

    q_sort(1,m);

    start:=x[1];

    over:=y[1];

    x[m+1]:=maxlongint; //懒得再添加判断了~~~

    l:=l+1; //不要忘了点0!!

    for i:=2 to m+1 do

    if x[i]over

    then

    over:=y[i];

    end //这个begin end一定要打!!!否则else就跟到第二个then上了

    else

    begin

    l:=l-(over-start+1);

    start:=x[i];

    over:=y[i];

    end;

    writeln(l);

    end.

    线段树的做法O(n log n) 对大数据比较有用

    至于这种暴弱的数据 直接54

  • 0
    @ 2008-11-13 16:06:37

    program tree;

    var l,m,i,j,n:integer;

    var a:array[1..10000,1..10000];

    b:array[1..500];

    begin

    readln(l,m);

    fillchar(a,size(a),0);

    for i:=1 to m do

    begin

    readln(a,a);

    for j:=a to a do

    b[j]:=1;

    end;

    for i:=1 to 500 do

    if b[i]=0 then inc(n);

    end.

信息

ID
1103
难度
4
分类
模拟 点击显示
标签
递交数
14316
已通过
6534
通过率
46%
被复制
54
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