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QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#648823 | #3125. Dango Maker | Dimash | 13 | 20ms | 83564kb | C++17 | 2.5kb | 2024-10-17 20:33:17 | 2024-10-17 20:33:17 |
Judging History
answer
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
const int N = 3e3 + 12, MOD = 998244353, M = 3e6 + 12;
char a[N][N];
int n, m, res = 0, res1 = 0, v[N][N], it = 1, h[N][N], dp[M][2];
vector<int> g[M];
void add(int x, int y) {
g[x].push_back(y);
g[y].push_back(x);
}
bool vis[N * N];
void dfs(int v, int pr = -1) {
vis[v] = 1;
dp[v][1] = 1;
for(int to:g[v]) {
if(to == pr) continue;
dfs(to, v);
dp[v][0] += max(dp[to][0], dp[to][1]);
dp[v][1] += dp[to][0];
}
}
void test() {
cin >> n >> m;
for(int i = 1; i <= n; i++) {
for(int j = 1; j <= m; j++) {
cin >> a[i][j];
}
}
for(int i = 1; i <= n; i++) {
for(int j = 1; j <= m; j++) {
if(a[i][j] == 'G' && a[i][j - 1] == 'R' && a[i][j + 1] == 'W') {
h[i][j - 1] = it++;
}
if(a[i][j] == 'G' && a[i - 1][j] == 'R' && a[i + 1][j] == 'W') {
v[i - 1][j] = it++;
}
}
}
for(int i = 1; i <= n; i++) {
for(int j = 1; j <= m; j++) {
if(a[i][j] == 'G' && a[i][j - 1] == 'R' && a[i][j + 1] == 'W') {
if(v[i][j - 1]) {
add(v[i][j - 1], h[i][j - 1]);
}
if(v[i - 1][j]) {
add(v[i - 1][j], h[i][j - 1]);
}
if(v[i - 2][j + 1]) {
add(v[i - 2][j + 1], h[i][j - 1]);
}
}
if(a[i][j] == 'G' && a[i - 1][j] == 'R' && a[i + 1][j] == 'W') {
if(h[i - 1][j]) {
add(v[i - 1][j], h[i - 1][j]);
}
if(h[i][j - 1]) {
add(v[i - 1][j], h[i][j - 1]);
}
if(h[i + 1][j - 2]) {
add(v[i - 1][j], h[i + 1][j - 2]);
}
}
}
}
for(int i = 1; i < it; i++) {
sort(g[i].begin(), g[i].end());
g[i].resize(unique(g[i].begin(), g[i].end()) - g[i].begin());
}
for(int i = 1; i < it; i++) {
if(!vis[i]) {
dfs(i);
res += max(dp[i][0], dp[i][1]);
}
}
cout << res << '\n';
}
int main() {
ios_base::sync_with_stdio(false);
cin.tie(0);
int t = 1;
// cin >> t;
while(t--)
test();
return 0;
}
Details
Tip: Click on the bar to expand more detailed information
Subtask #1:
score: 13
Accepted
Test #1:
score: 13
Accepted
time: 11ms
memory: 77396kb
input:
1 1 G
output:
0
result:
ok single line: '0'
Test #2:
score: 13
Accepted
time: 4ms
memory: 77280kb
input:
1 2 RG
output:
0
result:
ok single line: '0'
Test #3:
score: 13
Accepted
time: 11ms
memory: 77456kb
input:
2 1 W R
output:
0
result:
ok single line: '0'
Test #4:
score: 13
Accepted
time: 8ms
memory: 79392kb
input:
3 2 WW RW WR
output:
0
result:
ok single line: '0'
Test #5:
score: 13
Accepted
time: 10ms
memory: 77424kb
input:
4 4 GRRW GWWR WWWW RGRG
output:
0
result:
ok single line: '0'
Test #6:
score: 13
Accepted
time: 7ms
memory: 83564kb
input:
4 4 RGRR RRRG GRGW RGWW
output:
2
result:
ok single line: '2'
Test #7:
score: 13
Accepted
time: 8ms
memory: 81484kb
input:
4 4 RRGR GRRG WRGW RGWW
output:
3
result:
ok single line: '3'
Test #8:
score: 13
Accepted
time: 12ms
memory: 83564kb
input:
4 4 RGWR GGGW WWGW RWGW
output:
1
result:
ok single line: '1'
Test #9:
score: 13
Accepted
time: 18ms
memory: 83540kb
input:
3 3 RGW GGG WGW
output:
1
result:
ok single line: '1'
Test #10:
score: 13
Accepted
time: 20ms
memory: 79460kb
input:
4 1 W R G W
output:
1
result:
ok single line: '1'
Test #11:
score: 13
Accepted
time: 4ms
memory: 81424kb
input:
4 4 RGWR GWRG WRGW RGWR
output:
3
result:
ok single line: '3'
Test #12:
score: 13
Accepted
time: 11ms
memory: 81512kb
input:
4 4 RWWR GWRG WGGW RGWR
output:
3
result:
ok single line: '3'
Test #13:
score: 13
Accepted
time: 3ms
memory: 81496kb
input:
4 4 RGWR WWRG WRGW RWGR
output:
2
result:
ok single line: '2'
Test #14:
score: 13
Accepted
time: 14ms
memory: 79320kb
input:
4 4 RRRR GGGG WWWW RRRR
output:
4
result:
ok single line: '4'
Test #15:
score: 13
Accepted
time: 11ms
memory: 81572kb
input:
4 4 RRRR GGGR WWWW RRRR
output:
3
result:
ok single line: '3'
Test #16:
score: 13
Accepted
time: 7ms
memory: 81500kb
input:
4 4 RRRR GGGG WWWW RWRR
output:
4
result:
ok single line: '4'
Subtask #2:
score: 0
Memory Limit Exceeded
Dependency #1:
100%
Accepted
Test #17:
score: 20
Accepted
time: 7ms
memory: 81496kb
input:
5 5 RRGRR RGRGW RRWRW RGWGW RWWWW
output:
3
result:
ok single line: '3'
Test #18:
score: 20
Accepted
time: 8ms
memory: 83540kb
input:
6 6 RGWRGW RRRGWR RRWGWR WRRRWG GGGGGW WWWWWW
output:
7
result:
ok single line: '7'
Test #19:
score: 20
Accepted
time: 18ms
memory: 81432kb
input:
7 10 RRRGRGWRGW RGGGWRRGWR RWWWWGRRGG RGWRWWGGGW WWRGWRGWGW RGWWGGRGWW RRGWWWWWWW
output:
14
result:
ok single line: '14'
Test #20:
score: 20
Accepted
time: 4ms
memory: 83480kb
input:
10 8 RGWRRRGW RGWGRRGW WRGWGRGW RGWWRGWW GWRRGWWW WRRGRWRR GRGWGRGG WGWWWRWR RGWRGRGW RRWRGWWW
output:
16
result:
ok single line: '16'
Test #21:
score: 20
Accepted
time: 19ms
memory: 83480kb
input:
10 10 RRRRGWRRGW GRGRGRGGRR RGRGWGRRGR RWWWRRGRGW GRGGGRGWGG WRGWWGGRGW GGGRWWWRRR WWGRGWRRGG WWGWGWGGWW RRGWGRWWWW
output:
16
result:
ok single line: '16'
Test #22:
score: 20
Accepted
time: 11ms
memory: 81492kb
input:
10 10 RRRWRGWRGW GGGGGGRRWG WGWRWWGGGW RRRRRRWRRG GGGGGGRGGR WGWWWWGWGW WRRGWRWRGW RGWGRGWGRW GRWRGWWWGG RGWWGWRGWW
output:
19
result:
ok single line: '19'
Test #23:
score: 20
Accepted
time: 17ms
memory: 81496kb
input:
10 10 WGWGRWWGWR RGGWGRWWGR GWRRRRWWWG RGWRGWRRRG GRRWWGGRGG GGGGRWGRGG RRRGWWWWRW WRRRWRGRGR RGWGRWGRWG WRRWGGGWWW
output:
7
result:
ok single line: '7'
Test #24:
score: 20
Accepted
time: 18ms
memory: 79452kb
input:
10 10 GGRRGRGRWR RRWRGWWRRW WGRWWRRRWG GGWWRWGRGR RGGGRRGWRR WRWWWRWWWW WRWGGGGRRR RWGRGRWGGW GWGWWGWGRR GRWGGGWRWW
output:
2
result:
ok single line: '2'
Test #25:
score: 20
Accepted
time: 4ms
memory: 77396kb
input:
10 1 R G R W G G G R G R
output:
0
result:
ok single line: '0'
Test #26:
score: 20
Accepted
time: 4ms
memory: 79504kb
input:
1 10 GGGRWWGGWW
output:
0
result:
ok single line: '0'
Test #27:
score: 0
Memory Limit Exceeded
input:
10 10 RGWRGWRGWR GWRGWRGWRG WRGWRGWRGW RGWRGWRGWR GWRGWRGWRG WRGWRGWRGW RGWRRWRGWR GWRGWRGWRG WRGWRGWRGW RGWRGWRGWR
output:
result:
Subtask #3:
score: 0
Skipped
Dependency #1:
100%
Accepted
Dependency #2:
0%