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QOJ
| ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
|---|---|---|---|---|---|---|---|---|---|
| #160145 | #7104. Halting Problem | ucup-team134# | AC ✓ | 310ms | 232252kb | C++14 | 3.3kb | 2023-09-02 19:35:26 | 2023-09-02 19:35:26 |
Judging History
answer
#include <bits/stdc++.h>
using namespace std;
#define ff first
#define ss second
#define pb push_back
#define ll long long
typedef pair<ll,ll> pii;
const int mod=998244353;
inline int add(int x,int y){int ret=x+y;if(ret>=mod)ret-=mod;return ret;}
inline int sub(int x,int y){int ret=x-y;if(ret<0)ret+=mod;return ret;}
inline int mul(int x,int y){return ((ll)x*y)%mod;}
inline int step(int base,int pw){int ret=1;while(pw){if(pw&1)ret=mul(ret,base);base=mul(base,base);pw>>=1;}return ret;}
inline int invv(int x){return step(x,mod-2);}
const int maxn=3e6;
const int rsize=256;
vector<int>vect[maxn];
int pos[maxn];
void go(int x){
pos[x]=1;
for(int i=0;i<vect[x].size();i++){
int id=vect[x][i];
if(pos[id])continue;
go(id);
}
}
int main() {
///freopen("test.txt","r",stdin);
int t;
scanf("%d",&t);
while(t--){
int n;
scanf("%d",&n);
for(int i=0;i<=n;i++){
for(int j=0;j<rsize;j++){
vect[i*rsize+j].clear();
pos[i*rsize+j]=0;
}
}
for(int i=0;i<n;i++){
string s;
cin>>s;
if(s=="add"){
int x;
scanf("%d",&x);
for(int j=0;j<rsize;j++){
int nxt=(j+x)%rsize;
vect[i*rsize+j].pb((i+1)*rsize+nxt);
}
}
else if(s=="beq"){
int v,k;
scanf("%d %d",&v,&k);
k--;
for(int j=0;j<rsize;j++){
if(j==v){
vect[i*rsize+j].pb(k*rsize+j);
}
else{
vect[i*rsize+j].pb((i+1)*rsize+j);
}
}
}
else if(s=="bne"){
int v,k;
scanf("%d %d",&v,&k);
k--;
for(int j=0;j<rsize;j++){
if(j!=v){
vect[i*rsize+j].pb(k*rsize+j);
}
else{
vect[i*rsize+j].pb((i+1)*rsize+j);
}
}
}
else if(s=="blt"){
int v,k;
scanf("%d %d",&v,&k);
k--;
for(int j=0;j<rsize;j++){
if(j<v){
vect[i*rsize+j].pb(k*rsize+j);
}
else{
vect[i*rsize+j].pb((i+1)*rsize+j);
}
}
}
else if(s=="bgt"){
int v,k;
scanf("%d %d",&v,&k);
k--;
for(int j=0;j<rsize;j++){
if(j>v){
vect[i*rsize+j].pb(k*rsize+j);
}
else{
vect[i*rsize+j].pb((i+1)*rsize+j);
}
}
}
}
go(0);
int e=0;
for(int i=0;i<rsize;i++){
e=max(e,pos[n*rsize+i]);
}
if(e)printf("Yes\n");
else printf("No\n");
}
return 0;
}
这程序好像有点Bug，我给组数据试试？
Details
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Test #1:
score: 100
Accepted
time: 9ms
memory: 74920kb
input:
4 2 add 1 blt 5 1 3 add 252 add 1 bgt 252 2 2 add 2 bne 7 1 3 add 1 bne 252 1 beq 252 1
output:
Yes Yes No No
result:
ok 4 lines
Test #2:
score: 0
Accepted
time: 310ms
memory: 232252kb
input:
1117 8 bgt 51 8 add 75 add 115 bne 40 3 beq 213 6 bgt 210 4 blt 228 7 bgt 60 2 6 bne 130 3 add 33 bne 74 4 blt 73 6 blt 63 5 bne 138 2 6 beq 131 2 bgt 90 3 add 127 bgt 195 1 blt 244 6 bne 20 3 3 add 53 bne 122 1 blt 251 2 9 add 102 add 161 bne 26 2 blt 5 8 beq 76 3 add 119 bgt 196 3 bne 239 8 blt 15...
output:
No Yes Yes No No Yes Yes No Yes No No No No Yes No No Yes No Yes No No Yes No No No Yes Yes Yes Yes Yes Yes No No No Yes Yes Yes Yes Yes Yes No No No No No Yes No Yes No No No Yes No No No No No Yes No Yes Yes Yes No Yes No Yes No Yes No No No No Yes No No Yes No No Yes No No No Yes Yes Yes Yes No Y...
result:
ok 1117 lines
Extra Test:
score: 0
Extra Test Passed