传送门
题意
思路
暴力枚举每一个妆台的转换条件
code
#include<iostream>
#include<cstdio>
#include<stack>
#include<vector>
#include<algorithm>
#include<cmath>
#include<queue>
#include<cstring>
#include<map>
#include<set>
#include<vector>
#define int long long
#define IOS ios::sync_with_stdio(false),cin.tie(0),cout.tie(0)
#define long long
#define PI acos(-1.0)
using namespace std;
typedef long long ll;
typedef pair<int, int> PII;
const int INF = 1e18 + 10;
const int N = 1e5 + 10;
const int M = 1e7 + 10;
const int mod = 1e9 + 7;
int n, m, k, ans;
int qcal(int a, int b) { int res = 1; while (b) { if (b & 1) res = res * a % mod; b >>= 1; a = a * a % mod; } return res; }
int a[N], b[N];
bool is_prime(int n) { if (n < 2) return false; for (int i = 2; i <= n / i; i++) { if (n % i == 0) { return false; } }return true; }
int f[1010][1010];
void gzy()
{
}
signed main()
{
IOS;
int _ = 1; cin >> _;
while (_--) gzy();
return 0;
}
/**
* ┏┓ ┏┓+ +
* ┏┛┻━━━┛┻┓ + +
* ┃ ┃
* ┃ ━ ┃ ++ + + +
* ████━████+
* ◥██◤ ◥██◤ +
* ┃ ┻ ┃
* ┃ ┃ + +
* ┗━┓ ┏━┛
* ┃ ┃ + + + +Code is far away from
* ┃ ┃ + bug with the animal protecting
* ┃ ┗━━━┓ 神兽保佑,代码无bug
* ┃ ┣┓
* ┃ ┏┛
* ┗┓┓┏━┳┓┏┛ + + + +
* ┃┫┫ ┃┫┫
* ┗┻┛ ┗┻┛+ + + +
*/
很可惜 这样T了
原因在每次都memset了1010*1010
题目说了n*m <= 2e5 所以我们应该手写 清零
#include<iostream>
#include<cstdio>
#include<stack>
#include<vector>
#include<algorithm>
#include<cmath>
#include<queue>
#include<cstring>
#include<map>
#include<set>
#include<vector>
#define int long long
#define IOS ios::sync_with_stdio(false),cin.tie(0),cout.tie(0)
#define long long
#define PI acos(-1.0)
using namespace std;
typedef long long ll;
typedef pair<int, int> PII;
const int INF = 1e18 + 10;
const int N = 1e5 + 10;
const int M = 1e7 + 10;
const int mod = 1e9 + 7;
int n, m, k, ans;
int qcal(int a, int b) { int res = 1; while (b) { if (b & 1) res = res * a % mod; b >>= 1; a = a * a % mod; } return res; }
int a[N], b[N];
bool is_prime(int n) { if (n < 2) return false; for (int i = 2; i <= n / i; i++) { if (n % i == 0) { return false; } }return true; }
int f[1010][1010];
void gzy()
{
cin >> n >> m >> k;
for(int i = 0;i <= m;i ++)
for(int j = 0;j <= n;j ++)
f[i][j] = 0;
f[0][k] = 1;
for(int i = 1;i <= m;i ++)
{
int tmp;
char ch; cin >> tmp >> ch;
for(int j = 1;j <= n;j ++)
{
if(ch == '0')
{
if((j+n-tmp) % n == 0) f[i][j] = max(f[i][j],f[i-1][n]);
else f[i][j] = max(f[i][j],f[i-1][(j+n-tmp) % n]);
}
else if(ch == '1')
{
if((j+tmp) % n == 0) f[i][j] = max(f[i][j],f[i-1][n]);
else f[i][j] = max(f[i][j],f[i-1][(j+tmp) % n]);
}
else
{
if((j+n-tmp) % n == 0) f[i][j] = max(f[i][j],f[i-1][n]);
else f[i][j] = max(f[i][j],f[i-1][(j+n-tmp) % n]);
if((j+tmp) % n == 0) f[i][j] = max(f[i][j],f[i-1][n]);
else f[i][j] = max(f[i][j],f[i-1][(j+tmp) % n]);
}
}
}
set<int> se;
int cnt = 0;
for(int i = 1;i <= n;i ++)
if(f[m][i])
{
cnt ++;
se.insert(i);
}
cout << cnt << endl;
for(auto c:se) cout << c << ' ';
cout << endl;
}
signed main()
{
IOS;
int _ = 1; cin >> _;
while (_--) gzy();
return 0;
}
/**
* ┏┓ ┏┓+ +
* ┏┛┻━━━┛┻┓ + +
* ┃ ┃
* ┃ ━ ┃ ++ + + +
* ████━████+
* ◥██◤ ◥██◤ +
* ┃ ┻ ┃
* ┃ ┃ + +
* ┗━┓ ┏━┛
* ┃ ┃ + + + +Code is far away from
* ┃ ┃ + bug with the animal protecting
* ┃ ┗━━━┓ 神兽保佑,代码无bug
* ┃ ┣┓
* ┃ ┏┛
* ┗┓┓┏━┳┓┏┛ + + + +
* ┃┫┫ ┃┫┫
* ┗┻┛ ┗┻┛+ + + +
*/