Leetcode: Longest Substring Without Repeating Characters
来源：互联网 发布：惠州市网络问政门户 编辑：程序博客网 时间：2024/06/05 03:17
int lengthOfLongestSubstring(char* s) { int n=strlen(s); if(n==0){ return 0; } int hash[256]; memset(hash,-1,sizeof(hash)); int max_=1; //保存答案 int i=-1,j=0;//i为当前无重复字符串的起始位置-1 for(int j=0;j<n;j++){ if(hash[s[j]]>i){ //如果出现了重复 i=hash[s[j]]; //改变起始位置 } if(j-i>max_){ //更新max_ max_=j-i; } hash[s[j]]=j; //更新最近的s[j]位置 } return max_;} 0 0
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