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- #include <iostream>
- #include <cstdio>
- #include <algorithm>
- #include <string.h>
- #include <unordered_map>
- using namespace std;
- #define endl '\n'
- #define pi pair<int, int>
- unordered_map<int, int> used;
- int recur(int x){
- if(used.find(x) != used.end()) return used[x];
- int ret = __builtin_popcount(x);
- for(int i = 0; i < 24; i++){
- if(((x >> i) & 7) == 3){
- ret = min(ret, recur(x - (3 << i) + (4 << i)));
- }
- if(((x >> i) & 7) == 6){
- ret = min(ret, recur(x - (6 << i) + (1 << i)));
- }
- }
- return used[x] = ret;
- }
- void answer(){
- int k;
- string s;
- cin >> k >> s;
- int n = 0;
- for(int i = 0; i < s.size(); i++) n = (n << 1) | (s[i] == '-');
- cout << k << " " << recur(n) << endl;
- }
- int main(){
- ios::sync_with_stdio(false);
- cin.tie(NULL);
- int p;
- cin >> p;
- for(int i = 0; i < p; i++) answer();
- return 0;
- }
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