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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 |
---|---|---|---|---|---|---|---|---|---|
#789928 | #9551. The Emperor | Inkyo | TL | 1ms | 7924kb | C++20 | 1.2kb | 2024-11-27 22:52:04 | 2024-11-27 22:52:08 |
Judging History
answer
#include<bits/stdc++.h>
#define inf 0x3f3f3f3f
#define llinf 0x3f3f3f3f3f3f3f3f
#define vi vector <int>
#define vvi vector <vi>
#define endl '\n'
#define ll long long
using namespace std;
constexpr int mod = 998244353, N = 1030, M = 2e5 + 5;
int n;
int A[N], X[N], B[N], Y[N];
ll cnt[N][N], to[N][N];
bool vis[N][N];
void dfs(int p, int e)
{
if(!p) return;
if(vis[p][e]){
printf("-1\n");
exit(0);
}
vis[p][e] = true;
if(A[p] == e){
cnt[p][e] = 1;
to[p][e] = X[p];
}
else{
dfs(Y[p], B[p]);
dfs(to[Y[p]][B[p]], e);
cnt[p][e] = (cnt[Y[p]][B[p]] + cnt[to[Y[p]][B[p]]][e] + 1) % mod;
to[p][e] = to[to[Y[p]][B[p]]][e];
}
vis[p][e] = false;
return;
}
void solve()
{
scanf("%d", &n);
char str[20];
for(int i = 1; i <= n; i ++){
scanf("%s", str);
if(string(str) == "HALT;"){
A[i] = B[i] = 0;
scanf(" PUSH %d GOTO %d", &B[i], &Y[i]);
}
else{
scanf(" %d GOTO %d; PUSH %d GOTO %d", &A[i], &X[i], &B[i], &Y[i]);
}
}
dfs(1, 0);
printf("%d\n", cnt[1][0]);
}
int main()
{
// ios::sync_with_stdio(false);
// cin.tie(0); //cout.tie(0);
int t = 1;
//cin >> t;
while(t --) solve();
return 0;
}
详细
Test #1:
score: 100
Accepted
time: 1ms
memory: 7924kb
input:
1 HALT; PUSH 1 GOTO 1
output:
1
result:
ok 1 number(s): "1"
Test #2:
score: 0
Accepted
time: 1ms
memory: 7876kb
input:
5 POP 1 GOTO 2; PUSH 1 GOTO 2 HALT; PUSH 1 GOTO 3 POP 1 GOTO 4; PUSH 2 GOTO 4 POP 1 GOTO 2; PUSH 2 GOTO 4 HALT; PUSH 99 GOTO 4
output:
5
result:
ok 1 number(s): "5"
Test #3:
score: 0
Accepted
time: 0ms
memory: 7860kb
input:
1 POP 1 GOTO 1; PUSH 1 GOTO 1
output:
-1
result:
ok 1 number(s): "-1"
Test #4:
score: -100
Time Limit Exceeded
input:
61 POP 62 GOTO 61; PUSH 30 GOTO 60 POP 1 GOTO 3; PUSH 62 GOTO 61 POP 2 GOTO 61; PUSH 62 GOTO 61 POP 4 GOTO 7; PUSH 2 GOTO 61 POP 62 GOTO 61; PUSH 3 GOTO 4 POP 62 GOTO 61; PUSH 3 GOTO 5 POP 5 GOTO 10; PUSH 3 GOTO 6 POP 62 GOTO 61; PUSH 4 GOTO 7 POP 62 GOTO 61; PUSH 4 GOTO 8 POP 6 GOTO 12; PUSH 4 GOTO...