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0_0_19609881_20168.cpp:1:436: fatal error: GCC4.9.2/lib/gcc/x86_64-w64-mingw32/4.9.2/include/stdio.h>in: Invalid argument
 #include<stdio.h>int gcd(int a,int b){    if(b==0)return a;    return gcd(b,a%b);}    int main(){    int T;    int n,a,b,i;    int cnt;    scanf("%u",&T);    while(T--)    {        scanf("%d",&n);        cnt=a=1;        for(i=1;i<=n;i++)        {            scanf("%d",&b);            cnt=a/gcd(a,b)*b;//换一下，先除后乘，免得数据溢出             a=cnt;        }         printf("%d\n",cnt);       }        return 0;}    
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compilation terminated.