有dalao吗……runtime error求教

组合数问题
YJMSTR LV 8 @ 2017-09-22 00:02:30

#include<iostream>
#include<cstdio>
#include<cstring>
#include<algorithm>
using namespace std;
int main(){
    int yanghui[2005][2005],n,m,k,t,count=0;
    memset(yanghui,0,sizeof(yanghui));
    yanghui[1][1]=1;
        for(int i=2;i<=2000;i++)//初始化杨辉三角 
    {
        for(int j=1;j<=i;j++)
        {
            yanghui[i][j]=yanghui[i-1][j]+yanghui[i-1][j-1];
        }
    }
    cin>>t>>k;//首行输入 

    for(int i=1;i<=t;i++)
    {
        cin>>n>>m;
        for(int p=0;p<=n;p++){
            for(int q=0;q<=min(m,p);q++){
                if(yanghui[p+2][q+2]%k==0) count++;//求组合数 
            } 
        }
        printf("%d",count);
        count=0;
    }
    
    return 0;
}

孙鹤鸣 (sunheming) LV 10 @ 2020-03-02 15:05:37

Var
    c: array[0..2000, 0..2000] of longint;
    a: array[0..2000, 0..2000] of longint;
    t, k, m, n, i, j: integer;

Begin
    //初始化
    read(t, k);
    for i:= 0 to 2000 do
        for j:= 0 to 2000 do
            c[i, j]:= -1;
    //构建杨辉三角形
    for i:= 0 to 2000 do
    begin
        c[i, 0]:= 1;
        c[i, i]:= 1;
    end;
    for i:= 1 to 2000 do
        for j:= 1 to (i-1) do
            c[i, j]:= (c[i-1, j-1] + c[i-1, j]) mod k; //避免超范围
    //处理杨辉三角形
    for i:= 0 to 2000 do
        for j:= 0 to 2000 do
            if c[i, j] = 0 then
                c[i, j]:= 1 //如果整除则为1
            else
                c[i, j]:= 0;
    //前缀和
    for j:= 0 to 2000 do
        a[0, j]:= 0;
    for i:= 1 to 2000 do
        for j:= 0 to 2000 do
            a[i, j]:= a[i-1, j] + c[i, j];
    for j:= 1 to 2000 do
        for i:= 0 to 2000 do
            a[i, j]:= a[i, j] + a[i, j-1];
    //IO
    for i:= 1 to t do
    begin
        read(n, m);
        writeln(a[n, m]);
    end;
End.

随着疾风孤单流浪 LV 6 @ 2017-11-10 08:29:35

函数开在外面==而且没*取模*
我是路过的 LV 4 @ 2017-11-09 21:53:30

数组太大建议开在主函数外，不然很容易炸，我一开始也这样
学习阶段的刘锦钰 LV 9 @ 2017-10-22 10:41:37

是不是数组需要开main外面？
我把数组开在外面就没有runtime error了.
YJMSTR LV 8 @ 2017-09-22 00:02:52

QAQ萌新给虐惨了
- qym2008 LV 5 @ 2020-03-02 17:15:04
  
  8级萌新。。EMMM