結果
| 問題 |
No.910 素数部分列
|
| コンテスト | |
| ユーザー |
|
| 提出日時 | 2019-10-18 22:03:53 |
| 言語 | C++17 (gcc 13.3.0 + boost 1.87.0) |
| 結果 |
WA
|
| 実行時間 | - |
| コード長 | 2,949 bytes |
| コンパイル時間 | 2,318 ms |
| コンパイル使用メモリ | 201,448 KB |
| 最終ジャッジ日時 | 2025-01-07 22:54:50 |
|
ジャッジサーバーID (参考情報) |
judge3 / judge3 |
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| ファイルパターン | 結果 |
|---|---|
| sample | AC * 3 |
| other | AC * 25 WA * 25 |
ソースコード
#include <bits/stdc++.h>
#define LLI long long int
#define FOR(v, a, b) for(LLI v = (a); v < (b); ++v)
#define FORE(v, a, b) for(LLI v = (a); v <= (b); ++v)
#define REP(v, n) FOR(v, 0, n)
#define REPE(v, n) FORE(v, 0, n)
#define REV(v, a, b) for(LLI v = (a); v >= (b); --v)
#define ALL(x) (x).begin(), (x).end()
#define RALL(x) (x).rbegin(), (x).rend()
#define ITR(it, c) for(auto it = (c).begin(); it != (c).end(); ++it)
#define RITR(it, c) for(auto it = (c).rbegin(); it != (c).rend(); ++it)
#define EXIST(c,x) ((c).find(x) != (c).end())
#define fst first
#define snd second
#define popcount __builtin_popcount
#define UNIQ(v) (v).erase(unique(ALL(v)), (v).end())
#define bit(i) (1LL<<(i))
#ifdef DEBUG
#include <misc/C++/Debug.cpp>
#else
#define dump(...) ((void)0)
#endif
#define gcd __gcd
using namespace std;
template <class T> constexpr T lcm(T m, T n){return m/gcd(m,n)*n;}
template <typename I> void join(ostream &ost, I s, I t, string d=" "){for(auto i=s; i!=t; ++i){if(i!=s)ost<<d; ost<<*i;}ost<<endl;}
template <typename T> istream& operator>>(istream &is, vector<T> &v){for(auto &a : v) is >> a; return is;}
template <typename T, typename U> bool chmin(T &a, const U &b){return (a>b ? a=b, true : false);}
template <typename T, typename U> bool chmax(T &a, const U &b){return (a<b ? a=b, true : false);}
template <typename T, size_t N, typename U> void fill_array(T (&a)[N], const U &v){fill((U*)a, (U*)(a+N), v);}
struct Init{
Init(){
cin.tie(0);
ios::sync_with_stdio(false);
}
}init;
int main(){
int n;
string s;
while(cin >> n >> s){
int ans = 0;
{
dump(s);
string t;
REP(i,n){
if(s[i] == '3' or s[i] == '5' or s[i] == '7'){
ans += 1;
}else{
t += s[i];
}
}
s = t;
n = s.size();
}
{
dump(s);
vector<int> check(n);
stack<int> one;
REP(i,n){
if(s[i] == '1'){
one.push(i);
}else{
if(one.size()){
int j = one.top(); one.pop();
check[j] = true;
check[i] = true;
ans += 1;
}
}
}
string t;
REP(i,n){
if(not check[i]) t += s[i];
}
s = t;
n = s.size();
}
{
dump(s);
vector<int> check(n);
stack<int> one;
REP(i,n){
if(s[i] == '1'){
if(one.size()){
int j = one.top(); one.pop();
check[j] = true;
check[i] = true;
ans += 1;
}else{
one.push(i);
}
}
}
string t;
REP(i,n){
if(not check[i]) t += s[i];
}
s = t;
n = s.size();
}
{
dump(s);
int one = count(ALL(s), '1');
int nine = count(ALL(s), '9');
if(one and nine >= 2){
ans += 1;
}
}
cout << ans << endl;
}
return 0;
}