View Compilation Error

0_0_22226024_20829.cpp: In function 'void construct_sa()':
0_0_22226024_20829.cpp:34:19: error: 's' was not declared in this scope
         rk[i]=i<n?s[i]:-1;
                   ^
0_0_22226024_20829.cpp: In function 'void construct_lcp()':
0_0_22226024_20829.cpp:59:16: error: 's' was not declared in this scope
             if(s[j+h]!=s[i+h] || (s[j+h] == '\0' && s[i+h] == '\0'))break;/*****此处注意排除分隔?*****/
                ^
0_0_22226024_20829.cpp: In function 'int main()':
0_0_22226024_20829.cpp:103:24: error: 's' was not declared in this scope
             scanf("%s",s+alen);
                        ^
0_0_22226024_20829.cpp:117:9: error: 's' was not declared in this scope
         s[alen]='\0';
         ^