find-and-replace-in-string.rs

#![allow(dead_code, unused, unused_variables, non_snake_case)]

fnmain(){}

structSolution;

implSolution{
pubfnfind_replace_string(
s:String,
indices:Vec<i32>,
sources:Vec<String>,
targets:Vec<String>,
) -> String{
letmut map1: std::collections::HashMap<_,_> = std::collections::HashMap::new();
letmut map2: std::collections::HashMap<_,_> = std::collections::HashMap::new();

for i in0..indices.len(){
 map1.insert(indices[i]asusize,&sources[i]);
 map2.insert(indices[i]asusize, i);
}

letmut result = Vec::new();
letmut i = 0;

while i < s.len(){
ifletSome(x) = map1.get(&i){
if s[i..].starts_with(x.as_str()){
 result.extend_from_slice(targets[*map2.get(&i).unwrap()].as_bytes());
 i += x.len();
continue;
}
}

 result.push(s.as_bytes()[i]);
 i += 1;
}

unsafe{String::from_utf8_unchecked(result)}
}
}