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QOJ
ID | 题目 | 提交者 | 结果 | 用时 | 内存 | 语言 | 文件大小 | 提交时间 | 测评时间 |
---|---|---|---|---|---|---|---|---|---|
#300723 | #7508. Fast Debugger | defyers | TL | 513ms | 40952kb | C++17 | 5.9kb | 2024-01-08 17:55:49 | 2024-01-08 17:55:49 |
Judging History
answer
#include "bits/stdc++.h"
using namespace std;
#define all(a) (a).begin(), (a).end()
#define int long long
using ll = long long;
using LL = long long;
using pii = pair<int, int>;
const int AND = 1;
const int OR = 2;
const int XOR = 3;
const int FOR = 4;
const int END = 5;
const int AX = 256;
const int BX = 257;
const int CX = 258;
const int DX = 259;
const int INF = 1LL << 30;
struct Action{
int op, a, b;
};
string operandToString(int x){
if(x == AX) return "ax";
if(x == BX) return "bx";
if(x == CX) return "cx";
if(x == DX) return "dx";
return to_string(x);
}
ostream& operator<< (ostream& out, const Action& A){
map<int, string> ops = {
{AND, "AND"},
{OR, "OR"},
{XOR, "XOR"},
{FOR, "FOR"},
{END, "END"}
};
out << ops[A.op] << ' ' << operandToString(A.a) << ' ' << operandToString(A.b);
return out;
}
int readInstruction(){
string s; cin >> s;
if(s.substr(0, 3) == "and")
return AND;
else if(s.substr(0, 2) == "or"){
return OR;
}else if(s.substr(0, 3) == "xor"){
return XOR;
}else if(s == "repeat"){
return FOR;
}else if(s == "end"){
return END;
}
assert(false);
return 0;
}
int readOperand(){
string s; cin >> s;
if(isalpha(s[0])){
return 256 + (s[0] - 'a');
}else{
return stoi(s);
}
}
int getValue(int state, int oper){
if(oper >= 256){
return (state >> (oper - 256)) & 1;
}else{
return oper;
}
}
struct Func{
int a[16];
Func() = default;
Func(int op, int a, int b){
for(int msk = 0; msk < 16; msk++){
int x = getValue(msk, a);
int y = getValue(msk, b);
int z;
assert(x <= 1);
assert(y <= 1);
if (op == AND) {
z = x & y;
} else if (op == OR) {
z = x | y;
} else if (op == XOR) {
z = x ^ y;
}
int ap = a - 256;
int new_msk = (msk & (15 - (1 << ap))) | (z << ap);
Func::a[msk] = new_msk;
}
}
static Func Id(){
Func res;
for(int i = 0; i < 16; i++){
res.a[i] = i;
}
return res;
}
};
Func operator* (const Func& f, const Func& g){
Func h;
for(int i = 0; i < 16; i++){
h.a[i] = g.a[f.a[i]];
}
return h;
}
int a[17];
Func pow (const Func& f, int k) {
if(k == 0) return Func::Id();
Func g;
bool vis[16] = {};
for (int i = 0; i < 16; i++) {
fill(vis, vis + 16, false);
if (!vis[i]) {
a[0] = i; for(int i = 1; i <= 16; i++) a[i] = f.a[a[i - 1]];
if(k <= 16){
g.a[i] = a[k];
}else{
for(int j = 0; j < 16; j++){
if(a[j] == a[16]){
g.a[i] = a[j + ((k - 16) % (16 - j))];
break;
}
}
}
}
}
return g;
}
struct Func8 : array<Func, 8> {
Func8 () = default;
static Func8 Id(){
Func8 res;
for(int i = 0; i < 8; i++){
res[i] = Func::Id();
}
return res;
}
Func8(int op, int a, int b){
// cout << a << ' ' << b << endl;
for(int i = 0; i < 8; i++){
at(i) = {op, a >= 256 ? a : (a >> i) & 1, b >= 256 ? b : (b >> i) & 1};
}
}
};
Func8 operator* (const Func8& f, const Func8& g){
Func8 res;
for(int i = 0; i < 8; i++){
res[i] = f[i] * g[i];
}
return res;
}
struct node{
vector<Func8> ps; Func8 tot = Func8::Id();
vector<int> cnt; int sz;
vector<node*> ch; node* par = nullptr;
Action act;
Func8 pow(int k){
Func8 res;
for(int i = 0; i < 8; i++){
res[i] = ::pow(ps.back()[i], k);
}
return res;
}
node* append(const Action& act){
if(act.op != END){
node *v = new node();
v->act = act;
ch.push_back(v); v->par = this;
if(act.op == FOR)
return v;
else
return this;
}else{
return par;
}
}
};
void dfs0(node* v){
int sz = 0;
v->ps.push_back(Func8::Id());
v->cnt.push_back(0);
for(auto u : v->ch){
dfs0(u);
v->ps.push_back(v->ps.back() * u->tot);
v->cnt.push_back(v->cnt.back() + u->sz);
}
if(v->act.op == FOR){
v->tot = v->pow(v->act.a);
v->sz = min(v->cnt.back() * v->act.a, INF);
}else{
v->tot = Func8(v->act.op, v->act.a, v->act.b);
v->sz = 1;
}
v->sz = min(v->sz, INF);
}
Func8 dfs(node* v, int k){
assert(k >= 0);
if(k == 0) return Func8::Id();
if(v->act.op != FOR){
assert(k == 1);
return v->tot;
}else{
int psz = v->cnt.back();
Func8 res = v->pow(k / psz);
int pos = --upper_bound(all(v->cnt), k % psz) - v->cnt.begin();
res = res * v->ps[pos];
if(pos < v->ch.size()){
res = res * dfs(v->ch[pos], k % psz - v->cnt[pos]);
}
return res;
}
}
void solve(int TC) {
int n, q; cin >> n >> q;
vector<Action> A;
for(int i = 0; i < n; i++){
int ins = readInstruction();
if(ins == FOR){
int k; cin >> k;
A.push_back({FOR, k});
}else if(ins == END){
A.push_back({END});
}else{
int a = readOperand(), b = readOperand();
A.push_back({ins, a, b});
}
}
node *root = new node();
root->act = {FOR, 1, 0};
node *cur = root;
for(auto act : A){
cur = cur->append(act);
}
cur->append({END});
dfs0(root);
assert(cur == root);
// for(auto act : A){
// cout << act << '\n';
// }
for(int i = 0; i < q; i++){
int k, a, b, c, d; cin >> k >> a >> b >> c >> d;
int a2 = 0, b2 = 0, c2 = 0, d2 = 0;
Func8 ans = dfs(root, k);
for(int i = 0; i < 8; i++){
int v = ((a >> i) & 1)
+ ((b >> i) & 1) * 2
+ ((c >> i) & 1) * 4
+ ((d >> i) & 1) * 8;
v = ans[i].a[v];
a2 += (v & 1 ? (1 << i) : 0);
b2 += (v & 2 ? (1 << i) : 0);
c2 += (v & 4 ? (1 << i) : 0);
d2 += (v & 8 ? (1 << i) : 0);
}
cout << a2 << ' ' << b2 << ' ' << c2 << ' ' << d2 << '\n';
}
}
int32_t main() {
cin.tie(0)->sync_with_stdio(0);
cout << fixed << setprecision(10);
int t = 1;
// cin >> t;
for (int i = 1; i <= t; i++) {
solve(i);
}
}
详细
Test #1:
score: 100
Accepted
time: 0ms
memory: 3860kb
input:
6 2 repeat 5 xor ax bx xori ax 3 and cx ax xor cx dx end 10 1 2 4 3 8 4 1 2 3
output:
0 2 2 3 4 1 3 3
result:
ok 8 numbers
Test #2:
score: 0
Accepted
time: 513ms
memory: 40952kb
input:
11982 10000 repeat 2 repeat 2 andi bx 201 xori cx 241 repeat 4 xor cx bx xor ax dx repeat 8 or dx bx xori dx 22 end repeat 2 xor dx bx xor dx bx repeat 7 xor bx bx or cx dx and bx cx end andi dx 33 xori ax 179 xori bx 56 end xori dx 63 xori cx 91 xori dx 228 or cx dx repeat 6 xor cx dx xori bx 198 x...
output:
24 195 0 75 0 195 0 245 199 193 6 13 252 73 245 67 0 0 0 0 51 0 0 245 99 26 0 196 51 195 0 75 247 253 247 37 119 198 119 186 235 235 44 36 4 0 181 0 76 228 253 0 51 245 245 33 119 119 176 0 198 198 1 11 199 93 154 3 106 106 152 21 93 92 42 3 236 236 247 147 198 198 204 135 0 51 0 75 119 118 10 151 1...
result:
ok 40000 numbers
Test #3:
score: 0
Accepted
time: 69ms
memory: 40484kb
input:
11978 10000 repeat 3 repeat 3 xor ax dx xori cx 74 repeat 2 repeat 2 repeat 10 xor bx dx xori bx 167 xor dx bx and cx bx end xori cx 140 xor bx cx repeat 5 repeat 2 xor ax cx xor ax cx xor bx ax repeat 2 xor bx cx xori bx 237 xori ax 68 xor cx cx and cx bx xori ax 225 end xor dx dx repeat 5 repeat 5...
output:
141 144 167 0 250 230 51 0 243 168 87 0 195 106 164 164 151 138 51 151 94 34 164 94 245 207 174 0 59 152 164 164 219 239 54 147 49 1 27 0 186 96 30 0 70 15 143 0 43 70 0 0 46 207 138 138 150 146 164 50 114 180 164 114 19 155 164 164 69 249 253 147 236 100 5 72 202 160 184 157 192 90 234 0 246 164 78...
result:
ok 40000 numbers
Test #4:
score: -100
Time Limit Exceeded
input:
11981 10000 repeat 5 repeat 4 or cx ax repeat 2 xor ax ax repeat 6 xori dx 75 xor cx dx ori ax 200 xori ax 90 and cx bx xori bx 10 end repeat 6 ori dx 63 xor bx dx end xor cx cx xori dx 157 end xori cx 137 xor bx dx repeat 5 repeat 3 xori bx 43 xor dx dx xor cx ax xori ax 116 xori bx 239 xori dx 87 ...
output:
103 34 24 11 0 102 129 2 103 34 24 108 142 108 142 142 253 34 253 201 0 35 253 0 20 111 20 2 71 34 95 0 139 109 139 2 253 34 253 201 35 50 20 209 0 102 133 2 135 49 171 184 0 35 253 2 0 34 205 142 98 239 205 145 2 103 0 2 117 34 13 68 242 235 20 17 165 34 24 210 117 34 192 123 16 160 8 134 18 0 167 ...