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注意这道题输入占1秒时间,最好自己写输入函数,另外用ll做随机的话一次就应该过不介意的话用下面这个:
char get1char()
{
static char buffer[5600];
static int cnt;
if(buffer[cnt]==0)
{
gets(buffer);
cnt = 0;
return '\n';
}
return buffer[cnt++];
}
int readInt()
{
int i = 0;
bool positive = true;
char ch = get1char();
while(ch==' '||ch=='\n')ch=get1char();
if(ch == '-')
{
positive = false;
ch = get1char();
}
while(ch<='9' && ch>='0')
{
i*=10;
i+=ch-'0';
ch=get1char();
}
if(positive)
return i;
return -i;
}
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