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#include<stdio.h> #include<string.h> int main(void){ char ch,stro[1001],stack[1001]; int numstack[1001]; int top=-1,head=-1; /************************ 阅读全文
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Big Number Problem Description As we know, Big Number is always troublesome. But it's really important in our ACM. And today, your task is to write a 阅读全文
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Have Fun with Numbers Notice that the number 123456789 is a 9-digit number consisting exactly the numbers from 1 to 9, with no duplication. Double it 阅读全文