View Compilation Error

0_0_23248496_9837.cpp: In function 'void insert(char*)':
0_0_23248496_9837.cpp:22:22: error: 'id' was not declared in this scope
  for(i=0;i<len;i++){ id="s[i];" int="" u-="">ch[id]==0){
                      ^
0_0_23248496_9837.cpp: In function 'void ask(node*, int)':
0_0_23248496_9837.cpp:44:22: error: 't' was not declared in this scope
  for(i=0;i<maxn;i++) t-="">ch[i]!=0){
                      ^
0_0_23248496_9837.cpp:44:28: error: 'ch' was not declared in this scope
  for(i=0;i<maxn;i++) t-="">ch[i]!=0){
                            ^
0_0_23248496_9837.cpp: In function 'int main()':
0_0_23248496_9837.cpp:56:22: error: 't' was not declared in this scope
  for(i=0;i<maxn;i++) t-="">ch[i]=0;
                      ^
0_0_23248496_9837.cpp:56:28: error: 'ch' was not declared in this scope
  for(i=0;i<maxn;i++) t-="">ch[i]=0;
                            ^