#include<bits/stdc++.h> using namespace std; using LL=long long; #define FOR(i,l,r)for(int i=(l);i<=(r);++i) #define REP(i,n)FOR(i,0,(n)-1) #define ssize(x)int(x.size()) #ifdef DEBUG auto&operator<<(auto&o,pair<auto,auto>p){return o<<"("<<p.first<<", "<<p.second<<")";} auto&operator<<(auto&o,tuple<auto,auto,auto>t){return o<<"("<<get<0>(t)<<", "<<get<1>(t)<<", "<<get<2>(t)<<")";} auto&operator<<(auto&o,tuple<auto,auto,auto,auto>t){return o<<"("<<get<0>(t)<<", "<<get<1>(t)<<", "<<get<2>(t)<<", "<<get<3>(t)<<")";} auto operator<<(auto&o,auto x)->decltype(x.end(),o){o<<"{";int i=0;for(auto e:x)o<<","+!i++<<e;return o<<"}";} #define debug(X...)cerr<<"["#X"]: ",[](auto...$){((cerr<<$<<"; "),...)<<endl;}(X) #else #define debug(...){} #endif int main() { cin.tie(0)->sync_with_stdio(0); constexpr char left = 'L'; constexpr char right = 'P'; int n; cin >> n; vector<char> v(n); REP(i, n) cin >> v[i]; debug(n, v); vector<int> pref_left(n); REP(i, n) { pref_left[i] = v[i] == left; if (i) pref_left[i] += pref_left[i - 1]; } debug(pref_left); auto cnt_left = [&](int l, int r) { if (l > r) return 0; return pref_left[r] - (l ? pref_left[l - 1] : 0); }; auto cnt_right = [&](int l, int r) { if (l > r) return 0; return (r - l + 1) - cnt_left(l, r); }; vector<int> ans(n); REP(i, n) { const int l = cnt_right(0, i - 1); const int r = cnt_left(i + 1, n - 1); const int val = v[i] == left ? min(l, r + 1) + min(r, l) : min(r, l + 1) + min(l, r) ; debug(i, v[i], l, r, val); ans[i] = val; } REP(i, n) cout << ans[i] << (i == n - 1 ? '\n' : ' '); }
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 | #include<bits/stdc++.h> using namespace std; using LL=long long; #define FOR(i,l,r)for(int i=(l);i<=(r);++i) #define REP(i,n)FOR(i,0,(n)-1) #define ssize(x)int(x.size()) #ifdef DEBUG auto&operator<<(auto&o,pair<auto,auto>p){return o<<"("<<p.first<<", "<<p.second<<")";} auto&operator<<(auto&o,tuple<auto,auto,auto>t){return o<<"("<<get<0>(t)<<", "<<get<1>(t)<<", "<<get<2>(t)<<")";} auto&operator<<(auto&o,tuple<auto,auto,auto,auto>t){return o<<"("<<get<0>(t)<<", "<<get<1>(t)<<", "<<get<2>(t)<<", "<<get<3>(t)<<")";} auto operator<<(auto&o,auto x)->decltype(x.end(),o){o<<"{";int i=0;for(auto e:x)o<<","+!i++<<e;return o<<"}";} #define debug(X...)cerr<<"["#X"]: ",[](auto...$){((cerr<<$<<"; "),...)<<endl;}(X) #else #define debug(...){} #endif int main() { cin.tie(0)->sync_with_stdio(0); constexpr char left = 'L'; constexpr char right = 'P'; int n; cin >> n; vector<char> v(n); REP(i, n) cin >> v[i]; debug(n, v); vector<int> pref_left(n); REP(i, n) { pref_left[i] = v[i] == left; if (i) pref_left[i] += pref_left[i - 1]; } debug(pref_left); auto cnt_left = [&](int l, int r) { if (l > r) return 0; return pref_left[r] - (l ? pref_left[l - 1] : 0); }; auto cnt_right = [&](int l, int r) { if (l > r) return 0; return (r - l + 1) - cnt_left(l, r); }; vector<int> ans(n); REP(i, n) { const int l = cnt_right(0, i - 1); const int r = cnt_left(i + 1, n - 1); const int val = v[i] == left ? min(l, r + 1) + min(r, l) : min(r, l + 1) + min(l, r) ; debug(i, v[i], l, r, val); ans[i] = val; } REP(i, n) cout << ans[i] << (i == n - 1 ? '\n' : ' '); } |