随机数测试数据生成模板

#include <bits/stdc++.h>
#define _for(i,a,b) for(int i = (a);i < b;i ++)
#define _rep(i,a,b) for(int i = (a);i > b;i --)
#define INF 0x3f3f3f3f
#define MOD 1000000007
typedef long long ll;
using namespace std;

int Myrand(int l,int r)
{
    int num1 = rand() % r + 1;
    int num2 = rand() % r + 1;
    return num1-num2!=0?num1-num2:1;
}
int main()
{
    freopen("creator3.in","w+",stdout);
    srand(time(0));
    int N = 12;
    printf("%d\n",N);
    _for(i,0,N-1)
        printf("%d ",Myrand(-39,39));
    printf("%d\n",Myrand(-39,39));
    return 0;
}