比大整数大小_200612119031.txt

里面包括了一些acm比赛是常用的函数

#include<stdio.h>
#include<string.h>
int compare(char * c1,int s1,int e1,char *c2,int s2,int e2)
{
	while(c1[s1]=='0'&&s1<e1)s1++;
	while(c2[s2]=='0'&&s2<e2)s2++;
	if(e1-s1>e2-s2)return 1;
	if(e1-s1<e2-s2)return -1;
	int i1;int f11=0;
	for(i1=0;i1<=e1-s1;i1++)
	{
		if(c1[s1+i1]>c2[s2+i1]){f11=1;break;}
		if(c2[s2+i1]>c1[s1+i1])break;
	}
	if(i1>e1-s1)return 0;
	if(f11)return 1;
	return -1;
}
int main()
{
	char c[10]="2222";
	char c2[10]="2222";
	printf("%d\n",compare(c,0,3,c2,0,2));
	return 0;
}