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QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#796823 | #9564. Hey, Have You Seen My Kangaroo? | fryan | WA | 224ms | 57804kb | C++14 | 5.0kb | 2024-12-02 06:18:56 | 2024-12-02 06:18:56 |
Judging History
answer
#include "bits/stdc++.h"
using namespace std;
#define all(x) begin(x), end(x)
#define sz(x) (int) (x).size()
#define int long long
#define V vector
const int inf = 1e9;
const int mxn = 4e5+50;
void chmin(int &a, int b) {
a = min(a,b);
}
int n,m,k;
V<V<int>> g;
string s;
V<V<int>> gg[2];
V<array<int,2>> mg;
int kil[mxn],to[mxn];
int in_deg[mxn];
int depth[mxn];
vector<int> adj[mxn];
vector<array<int,3>> iter_order;
queue<int> topsort;
int cnt = 0, ans[mxn];
signed main() {
ios::sync_with_stdio(false); cin.tie(nullptr);
cin>>n>>m>>k>>s;
g.resize(n+5);
g[0].resize(m+5);
g[n+1].resize(m+5);
for (int i=1; i<=n; i++) {
g[i].resize(m+5);
for (int j=1; j<=m; j++) {
char c; cin>>c;
g[i][j] = c-'0';
if (g[i][j]) cnt++;
}
}
//macro
for (int x=1; x<=n; x++)
for (int y=1; y<=m; y++) {
if (!g[x][y]) continue;
int cx = x, cy = y;
for (int i=0; i<k; i++) {
if (s[i]=='U') {if (g[cx-1][cy]) cx--;}
else if (s[i]=='D') {if (g[cx+1][cy]) cx++;}
else if (s[i]=='L') {if (g[cx][cy-1]) cy--;}
else if (s[i]=='R') {if (g[cx][cy+1]) cy++;}
}
to[x*m+y] = cx*m+cy;
in_deg[cx*m+cy]++;
adj[cx*m+cy].push_back(x*m+y);
}
for (int x=1; x<=n; x++)
for (int y=1; y<=m; y++)
if (g[x][y] && !in_deg[x*m+y])
topsort.push(x*m+y);
fill(depth,depth+mxn,1);
while (sz(topsort)) {
int v = topsort.front(); topsort.pop();
depth[to[v]] = max(depth[to[v]],depth[v]+1);
in_deg[to[v]]--;
if (!in_deg[to[v]]) {topsort.push(to[v]);}
}
for (int x=1; x<=n; x++)
for (int y=1; y<=m; y++)
if (g[x][y] && in_deg[x*m+y])
depth[x*m+y] = inf;
//micro
int cp = 0, pp = 1;
gg[0].resize(n+5); gg[1].resize(n+5);gg[0][0].resize(m+5);
gg[0][n+1].resize(m+5);gg[1][0].resize(m+5);gg[1][n+1].resize(m+5);
for (int i=1; i<=n; i++) {
gg[0][i].resize(m+5);
gg[1][i].resize(m+5);
for (int j=1; j<=m; j++) if (g[i][j]) gg[cp][i][j] = i*m+j;
}
fill(kil,kil+mxn,inf);
// memset(kil,0x3f,sizeof(kil));
for (int i=0; i<k; i++) {
swap(cp,pp);
for (int x=1; x<=n; x++)
for (int y=1; y<=m; y++)
gg[cp][x][y] = 0;
for (int x=1; x<=n; x++)
for (int y=1; y<=m; y++) {
if (!gg[pp][x][y]) continue;
if (s[i]=='U') {
if (g[x-1][y]) {
if (gg[cp][x-1][y]) {
if (depth[gg[pp][x][y]] > depth[gg[cp][x-1][y]]) {swap(gg[pp][x][y],gg[cp][x-1][y]);}
kil[gg[pp][x][y]] = i;
} else gg[cp][x-1][y] = gg[pp][x][y];
} else {
if (gg[cp][x][y]) {
if (depth[gg[pp][x][y]] > depth[gg[cp][x][y]]) {swap(gg[pp][x][y],gg[cp][x][y]);}
kil[gg[pp][x][y]] = i;
} else gg[cp][x][y] = gg[pp][x][y];
}
} else if (s[i]=='D') {
if (g[x+1][y]) {
if (gg[cp][x+1][y]) {
if (depth[gg[pp][x][y]] > depth[gg[cp][x+1][y]]) {swap(gg[pp][x][y],gg[cp][x+1][y]);}
kil[gg[pp][x][y]] = i;
} else gg[cp][x+1][y] = gg[pp][x][y];
} else {
if (gg[cp][x][y]) {
if (depth[gg[pp][x][y]] > depth[gg[cp][x][y]]) {swap(gg[pp][x][y],gg[cp][x][y]);}
kil[gg[pp][x][y]] = i;
} else gg[cp][x][y] = gg[pp][x][y];
}
} else if (s[i]=='L') {
if (g[x][y-1]) {
if (gg[cp][x][y-1]) {
if (depth[gg[pp][x][y]] > depth[gg[cp][x][y-1]]) {swap(gg[pp][x][y],gg[cp][x][y-1]);}
kil[gg[pp][x][y]] = i;
} else gg[cp][x][y-1] = gg[pp][x][y];
} else {
if (gg[cp][x][y]) {
if (depth[gg[pp][x][y]] > depth[gg[cp][x][y]]) {swap(gg[pp][x][y],gg[cp][x][y]);}
kil[gg[pp][x][y]] = i;
} else gg[cp][x][y] = gg[pp][x][y];
}
} else if (s[i]=='R') {
if (g[x][y+1]) {
if (gg[cp][x][y+1]) {
if (depth[gg[pp][x][y]] > depth[gg[cp][x][y+1]]) {swap(gg[pp][x][y],gg[cp][x][y+1]);}
kil[gg[pp][x][y]] = i;
} else gg[cp][x][y+1] = gg[pp][x][y];
} else {
if (gg[cp][x][y]) {
if (depth[gg[pp][x][y]] > depth[gg[cp][x][y]]) {swap(gg[pp][x][y],gg[cp][x][y]);}
kil[gg[pp][x][y]] = i;
} else gg[cp][x][y] = gg[pp][x][y];
}
}
}
}
for (int x=1; x<=n; x++)
for (int y=1; y<=m; y++)
if (g[x][y] && sz(adj[x*m+y]))
iter_order.push_back({depth[x*m+y],x,y});
vector<int> kill_times;
sort(all(iter_order));
for (auto [D,X,Y] : iter_order) {
int lock = adj[X*m+Y][0];
for (int i : adj[X*m+Y]) {
if (depth[i] > depth[lock]) lock = i;
}
for (int i : adj[X*m+Y]) {
if (i==lock) continue;
for (int j=0; j<depth[i]; j++) {
kill_times.push_back(kil[i]+j*k+1);
if (kil[i]+j*k+1==1000000001) {
cout<<i<<": "<<depth[i]<<" "<<sz(adj[i])<<"\n";
}
}
}
}
if (n==5) return 0;
sort(all(kill_times));
reverse(all(kill_times));
int cn = cnt;
while (sz(kill_times)) {
int t = kill_times.back();
ans[--cn] = t;
kill_times.pop_back();
}
for (int i=1; i<cn; i++) ans[i] = -1;
for (int i=1; i<=m*n; i++) {
cout<<ans[i]<<"\n";
}
}
/*
bad:
4,4178
*/
Details
Tip: Click on the bar to expand more detailed information
Test #1:
score: 100
Accepted
time: 4ms
memory: 23212kb
input:
3 3 6 ULDDRR 010 111 010
output:
-1 4 2 1 0 0 0 0 0
result:
ok 9 numbers
Test #2:
score: 0
Accepted
time: 0ms
memory: 25132kb
input:
3 3 6 ULDDRR 010 111 011
output:
7 4 2 1 1 0 0 0 0
result:
ok 9 numbers
Test #3:
score: 0
Accepted
time: 0ms
memory: 23776kb
input:
1 5 1 R 11111
output:
4 3 2 1 0
result:
ok 5 number(s): "4 3 2 1 0"
Test #4:
score: 0
Accepted
time: 224ms
memory: 57804kb
input:
1 200000 200 RDRLDRULURDLDRULLRULLRRULRULRDLLDLRUDDLRURLURLULDRUUURDLUDUDLLLLLURRDURLUDDRRLRRURUUDDLLDDUUUDUULRLRUDULRRUURUDDDDLULULLLLLLLLLLLUDURLURLRLLRRRURUURLUDULDUULRRLULLRUDRDRUUDDRUDRDLLDLURDDDURLUULDRRDLDD 11111111111111111111111111111111111111111111111111111111111111111111111111111111111111...
output:
3999923 3999865 3999864 3999740 3999729 3999728 3999727 3999726 3999725 3999724 3999723 3999665 3999664 3999540 3999529 3999528 3999527 3999526 3999525 3999524 3999523 3999465 3999464 3999340 3999329 3999328 3999327 3999326 3999325 3999324 3999323 3999265 3999264 3999140 3999129 3999128 3999127 3999...
result:
ok 200000 numbers
Test #5:
score: 0
Accepted
time: 202ms
memory: 45052kb
input:
2 100000 200 UULDRDLURDLDDRDRDUULDLUUULLRURLUUDDDRURURLLRRUDLDDDUDDRRUUURDDULURURLRULLUDLULURUUDURLDRRRDULRDLRRLDUUUDDUUDUDRDRUDLDRRUDRDLDRDLDRRDLRRDRDLRRLUDUDRULLRRLDDLUDDULDRLLLDLURRDDULDDUDULLRRRUURLRRRLURDLRLU 11111111111111111111111111111111111111111111111111111111111111111111111111111111111111...
output:
-1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 384513 384490 384313 384290 384113 384090 383913 383890 383713 383690 383513 383490 383313 383290 383113 383090 382913 382890 382713 382690 382513 382490 382313 382290 382113 382090 381913 381890 381713 381690 381513 381490 381313 381290 381113 381090 380...
result:
ok 200000 numbers
Test #6:
score: -100
Wrong Answer
time: 171ms
memory: 40908kb
input:
5 40000 200 URDDRRUDURLDLUUDUUDDLRRRURULURDRRURRURULUULRRLDLLDUURRDRUULRULULUDRURRRURDDLLDDRLLLUDUDLLDDULUUUULDLDUDLULLDRURRDRDULURLLLUDLRRRDRLUDDUURULURRRDLDRUDLURUUULDLURDDDRRLLLDLRRDLDLDRRURRRRDLRRLLULRRLDUULD 111111111111111111111111111111111111111111111111111111111111111111111111111111111111111...
output:
164178: 1 0 172365: 1 0 194556: 1 0
result:
wrong output format Expected integer, but "164178:" found