Source Code
#define _CRT_SECURE_NO_WARNINGS
#include <utility>
#include <string.h>
#include <string>
#include <math.h>
#include <stack>
#include <set>
#include <map>
#include <queue>
#include <deque>
#include <iterator>
#include <iostream>
#include <vector>
#include <algorithm>
#include <unordered_map>
#include <bitset>
#include <time.h>
#include <stdlib.h>

using namespace std;
const long long INF = 1ll << 32;
const double PI = acos(-1);
typedef long long ll;
typedef long double ld;
typedef vector<int> vi;
typedef vector<ll> vl;
typedef vector<bool> vb;
typedef pair<int, int>pi;
typedef pair<ll, ll>pl;
typedef vector<pi>vpi;
typedef vector<pl>vpl;
typedef vector<vi> vvi;
typedef vector<vb> vvb;
typedef vector<vl> vvl;
typedef vector<string> vs;
int dc[] = { 0,0,1,-1 }, dr[] = { 1,-1,0,0 };
#define all(v) (v).begin(),(v).end()
#define rall(v) (v).rbegin(),(v).rend()
#define read(v) for (int it = 0; it < v.size(); it++) {scanf("%d", &v[it]);}
#define print(v) for(auto it : v) printf("%d ", it); puts("");
#define readL(v) for (int it = 0; it < v.size(); it++) scanf("%lld", &v[it]);
#define printL(v) for (auto it : v) printf("%lld ", it); puts("");
#define readC(v) for (int it = 0; it < v.size(); it++) {scanf("%c", &v[it]);}
#define printC(v) for(auto it : v) printf("%c", it); puts("");

void build() {

}

void solve() {
	int n, x, y, z;
	scanf("%d %d %d %d", &n, &x, &y, &z);
	vector <char> ans(n,'?');
	string a, b, c;
	cin >> a >> b >> c;
	for (int i = 0; i < n; i++) {
		if (a[i] == '1' && b[i] == '1' && c[i] == '0') {
			if (!z) {
				puts("NO");
				return;
			}
			z--;
			ans[i] = '^';
		}
		else if (a[i] == '1' && b[i] == '0' && c[i] == '0') {
			if (!x) {
				puts("NO");
				return;
			}
			x--;
			ans[i] = '&';
		}
		else if (a[i] == '0' && b[i] == '1' && c[i] == '0') {
			if (!x) {
				puts("NO");
				return;
			}
			x--;
			ans[i] = '&';
		}
	}
	for (int i = 0; i < n; i++) {
		if (ans[i] != '?')
			continue;
		if (a[i] == '1' && b[i] == '0' && c[i] == '1') {
			if (y) {
				ans[i] = '|';
				y--;
			}
			else if (z) {
				z--;
				ans[i] = '^';
			}
			else {
				puts("NO");
				return;
			}
		}
		else if (a[i] == '0' && b[i] == '1' && c[i] == '1') {
			if (y) {
				ans[i] = '|';
				y--;
			}
			else if (z) {
				z--;
				ans[i] = '^';
			}
			else {
				puts("NO");
				return;
			}
		}
		else if (a[i] == '1' && b[i] == '1' && c[i] == '1') {
			if (x) {
				x--;
				ans[i] = '&';
			}
			else if (y) {
				ans[i] = '|';
				y--;
			}
			else {
				puts("NO");
				return;
			}
		}
		else if (a[i]=='0'&&b[i]=='0'&&c[i]=='0') {
			if (x) {
				x--;
				ans[i] = '&';
			}
			else if (y) {
				ans[i] = '|';
				y--;
			}
			else if (z) {
				z--;
				ans[i] = '^';
			}
			else {
				puts("NO");
				return;
			}
		}
		else {
			puts("NO");
			return;
		}
	}
	puts("YES");
	printC(ans);
}
int main(void) {

	int t = 1;
	//scanf("%d", &t);
	build();
	while (t--)
		solve();
	return 0;
}
Copy
Binary String Enigma
GNU G++17
2 ms
256 KB
Wrong Answer