Small word

Posted by johnrcornell on Sat, 14 Dec 2019 15:53:30 +0100

meaning of the title

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Sol

When I hit cf, I was really mentally disabled. I made an abcdad of my own data and had a good time playing with it for a long time... In the end, it's good that ycr gave me a way of thinking, otherwise it would be cold...

First of all, it's not hard to see that we can make the string in the form of \ (aaaabbb \) at last. If the current bit is different from the next bit, we can directly convert it

Pay attention to the last position

/*

*/
#include<iostream>
#include<cstdio>
#include<cstring>
#include<algorithm>
#include<map>
#include<vector>
#include<set>
#include<queue>
#include<cmath>
#include<tr1/unordered_map> 
//#include<ext/pb_ds/assoc_container.hpp>
//#include<ext/pb_ds/hash_policy.hpp>
#define Pair pair<int, int>
#define MP(x, y) make_pair(x, y)
#define fi first
#define se second
//#define int long long
#define LL long long
#define ull unsigned long long
#define rg register
#define pt(x) printf("%d ", x);
//#define getchar() (p1 == p2 && (p2 = (p1 = buf) + fread(buf, 1, 1<<22, stdin), p1 == p2) ? EOF : *p1++)
//char buf[(1 << 22)], *p1 = buf, *p2 = buf;
//char obuf[1<<24], *O = obuf;
//void print(int x) {if(x > 9) print(x / 10); *O++ = x % 10 + '0';}
//#define OS  *O++ = ' ';
using namespace std;
//using namespace __gnu_pbds;
const int MAXN = 1e5 + 10, INF = 1e9 + 10, mod = 998244353;
const double eps = 1e-9;
inline int read() {
    char c = getchar();
    int x = 0, f = 1;
    while(c < '0' || c > '9') {if(c == '-') f = -1;c = getchar();}
    while(c >= '0' && c <= '9') x = x * 10 + c - '0', c = getchar();
    return x * f;
}
int N, flag[MAXN];
string s, r;
string RE(string s, int pre) {
    for(int i = 0; i < pre; i++) swap(s[i], s[pre - i]);
    return s;
}
main() {
    cin >> s;
    int N = s.length();
    for(int i = 0; i < N; i++) {
        if(s[i] != s[i + 1])
            s = RE(s, i), flag[i] = 1;
//      cout << s << endl;
    }
    string a = s, b = RE(s, N - 1);
    //cout << a << " " << b << endl;
    if(flag[N - 1] && (b < a)) flag[N - 1] = 0;
    for(int i = 0; i < N; i++) printf("%d ", flag[i]);
    return 0;
}

Topics: C++