QOJ.ac
QOJ
| ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
|---|---|---|---|---|---|---|---|---|---|
| #180252 | #6309. Aqre | ucup-team045# | AC ✓ | 357ms | 4764kb | C++20 | 4.2kb | 2023-09-15 17:17:25 | 2023-09-15 17:17:26 |
Judging History
answer
#include<iostream>
#include<cstring>
#include<vector>
#include<queue>
#include<array>
#include<cassert>
using namespace std;
using LL = long long;
int main(){
#ifdef LOCAL
freopen("data.in", "r", stdin);
freopen("data.out", "w", stdout);
#endif
cin.tie(0);
cout.tie(0);
ios::sync_with_stdio(0);
int T;
cin >> T;
while(T--){
int n, m;
cin >> n >> m;
if (n <= 3 && m <= 3){
cout << n * m << '\n';
for(int i = 0; i < n; i++)
cout << string(m, '1') << '\n';
continue;
}
if (n == 3){
vector<string> g(n, string(m, '1'));
int ans = n * m;
for(int i = 3; i < m; i += 4){
g[0][i] = g[1][i] = '0';
ans -= 2;
}
for(int i = 1; i < m; i += 4){
g[2][i] = '0';
ans -= 1;
}
cout << ans << '\n';
for(auto &s : g) cout << s << '\n';
continue;
}
if (m == 3){
vector<string> g(n, string(m, '1'));
int ans = n * m;
for(int i = 3; i < n; i += 4){
g[i][0] = g[i][1] = '0';
ans -= 2;
}
for(int i = 1; i < n; i += 4){
g[i][2] = '0';
ans -= 1;
}
cout << ans << '\n';
for(auto &s : g) cout << s << '\n';
continue;
}
array<int, 3> best;
int mx = 0;
vector<pair<int, int> > p[2];
p[0] = {{0, 1}, {1, 3}, {2, 0}, {3, 2}};
p[1] = {{0, 2}, {1, 0}, {2, 3}, {3, 1}};
auto get = [&](int x, int y, int id){
vector<string> g(n, string(m, '1'));
int ans = n * m;
for(int i = 0; i < n; i++){
for(int j = 0; j < m; j++){
int xx = (i + x) % 4, yy = (j + y) % 4;
for(auto &[tx, ty] : p[id]){
if (xx == tx && yy == ty){
g[i][j] = '0';
ans--;
}
}
}
}
vector<vector<bool> > v(n, vector<bool>(m));
int cnt = 0;
auto bfs = [&](int x, int y){
static const int dx[4] = {-1, 0, 1, 0};
static const int dy[4] = {0, -1, 0, 1};
queue<pair<int, int> > q;
q.push({x, y});
v[x][y] = true;
while(!q.empty()){
auto [tx, ty] = q.front();
q.pop();
for(int u = 0; u < 4; u++){
int xx = tx + dx[u], yy = ty + dy[u];
if (xx < 0 || xx >= n || yy < 0 || yy >= m) continue;
if (g[xx][yy] == '0' || v[xx][yy]) continue;
v[xx][yy] = true;
q.push({xx, yy});
}
}
};
for(int i = 0; i < n; i++){
for(int j = 0; j < m; j++){
if (g[i][j] == '0' || v[i][j]) continue;
if (++cnt == 2) return 0;
bfs(i, j);
}
}
return ans;
};
for(int i = 0; i < 4; i++){
for(int j = 0; j < 4; j++){
for(int k = 0; k < 2; k++){
int t = get(i, j, k);
if (t > mx){
mx = t;
best = {i, j, k};
}
}
}
}
vector<string> g(n, string(m, '1'));
for(int i = 0; i < n; i++){
for(int j = 0; j < m; j++){
int xx = (i + best[0]) % 4, yy = (j + best[1]) % 4;
for(auto &[tx, ty] : p[best[2]]){
if (xx == tx && yy == ty){
g[i][j] = '0';
}
}
}
}
cout << mx << '\n';
for(auto &s : g) cout << s << '\n';
}
}
Details
Tip: Click on the bar to expand more detailed information
Test #1:
score: 100
Accepted
time: 1ms
memory: 3436kb
input:
3 2 2 3 4 3 8
output:
4 11 11 9 1110 1110 1011 18 11101110 11101110 10111011
result:
ok ok (3 test cases)
Test #2:
score: 0
Accepted
time: 21ms
memory: 3496kb
input:
361 2 2 2 3 2 4 2 5 2 6 2 7 2 8 2 9 2 10 2 11 2 12 2 13 2 14 2 15 2 16 2 17 2 18 2 19 2 20 3 2 3 3 3 4 3 5 3 6 3 7 3 8 3 9 3 10 3 11 3 12 3 13 3 14 3 15 3 16 3 17 3 18 3 19 3 20 4 2 4 3 4 4 4 5 4 6 4 7 4 8 4 9 4 10 4 11 4 12 4 13 4 14 4 15 4 16 4 17 4 18 4 19 4 20 5 2 5 3 5 4 5 5 5 6 5 7 5 8 5 9 5 1...
output:
4 11 11 6 111 111 6 1011 1110 8 10111 11101 9 101110 111011 11 1011101 1110111 12 10111011 11101110 14 101110111 111011101 15 1011101110 1110111011 17 10111011101 11101110111 18 101110111011 111011101110 20 1011101110111 1110111011101 21 10111011101110 11101110111011 23 101110111011101 1110111011101...
result:
ok ok (361 test cases)
Test #3:
score: 0
Accepted
time: 350ms
memory: 3472kb
input:
100 91 91 91 92 91 93 91 94 91 95 91 96 91 97 91 98 91 99 91 100 92 91 92 92 92 93 92 94 92 95 92 96 92 97 92 98 92 99 92 100 93 91 93 92 93 93 93 94 93 95 93 96 93 97 93 98 93 99 93 100 94 91 94 92 94 93 94 94 94 95 94 96 94 97 94 98 94 99 94 100 95 91 95 92 95 93 95 94 95 95 95 96 95 97 95 98 95 9...
output:
6211 1011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101 1110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111 0111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011 1101110111011101110...
result:
ok ok (100 test cases)
Test #4:
score: 0
Accepted
time: 354ms
memory: 3584kb
input:
16 247 247 247 248 247 249 247 250 248 247 248 248 248 249 248 250 249 247 249 248 249 249 249 250 250 247 250 248 250 249 250 250
output:
45757 1011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101 1110111011101110111011101110111011101110111011...
result:
ok ok (16 test cases)
Test #5:
score: 0
Accepted
time: 340ms
memory: 4652kb
input:
1 997 997
output:
745507 10111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111...
result:
ok ok (1 test case)
Test #6:
score: 0
Accepted
time: 344ms
memory: 4668kb
input:
1 997 998
output:
746255 11011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011...
result:
ok ok (1 test case)
Test #7:
score: 0
Accepted
time: 347ms
memory: 4644kb
input:
1 997 999
output:
747003 11101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101...
result:
ok ok (1 test case)
Test #8:
score: 0
Accepted
time: 344ms
memory: 4692kb
input:
1 997 1000
output:
747750 10111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111...
result:
ok ok (1 test case)
Test #9:
score: 0
Accepted
time: 344ms
memory: 4680kb
input:
1 998 997
output:
746255 10111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111...
result:
ok ok (1 test case)
Test #10:
score: 0
Accepted
time: 346ms
memory: 4688kb
input:
1 998 998
output:
747004 11011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011...
result:
ok ok (1 test case)
Test #11:
score: 0
Accepted
time: 340ms
memory: 4672kb
input:
1 998 999
output:
747752 10111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111...
result:
ok ok (1 test case)
Test #12:
score: 0
Accepted
time: 344ms
memory: 4672kb
input:
1 998 1000
output:
748500 10111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111...
result:
ok ok (1 test case)
Test #13:
score: 0
Accepted
time: 357ms
memory: 4648kb
input:
1 999 997
output:
747003 10111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111...
result:
ok ok (1 test case)
Test #14:
score: 0
Accepted
time: 350ms
memory: 4652kb
input:
1 999 998
output:
747752 11011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011...
result:
ok ok (1 test case)
Test #15:
score: 0
Accepted
time: 340ms
memory: 4672kb
input:
1 999 999
output:
748501 10111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111...
result:
ok ok (1 test case)
Test #16:
score: 0
Accepted
time: 344ms
memory: 4688kb
input:
1 999 1000
output:
749250 10111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111...
result:
ok ok (1 test case)
Test #17:
score: 0
Accepted
time: 356ms
memory: 4656kb
input:
1 1000 997
output:
747750 10111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111...
result:
ok ok (1 test case)
Test #18:
score: 0
Accepted
time: 341ms
memory: 4764kb
input:
1 1000 998
output:
748500 10111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111...
result:
ok ok (1 test case)
Test #19:
score: 0
Accepted
time: 345ms
memory: 4680kb
input:
1 1000 999
output:
749250 10111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111...
result:
ok ok (1 test case)
Test #20:
score: 0
Accepted
time: 345ms
memory: 4668kb
input:
1 1000 1000
output:
750000 10111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111...
result:
ok ok (1 test case)
Test #21:
score: 0
Accepted
time: 1ms
memory: 3504kb
input:
1 3 997
output:
2244 1110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111...
result:
ok ok (1 test case)
Test #22:
score: 0
Accepted
time: 0ms
memory: 3480kb
input:
1 3 998
output:
2246 1110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111...
result:
ok ok (1 test case)
Test #23:
score: 0
Accepted
time: 1ms
memory: 3468kb
input:
1 3 999
output:
2249 1110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111...
result:
ok ok (1 test case)
Test #24:
score: 0
Accepted
time: 0ms
memory: 3476kb
input:
1 3 1000
output:
2250 1110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111...
result:
ok ok (1 test case)
Test #25:
score: 0
Accepted
time: 1ms
memory: 3552kb
input:
1 997 3
output:
2244 111 110 111 001 111 110 111 001 111 110 111 001 111 110 111 001 111 110 111 001 111 110 111 001 111 110 111 001 111 110 111 001 111 110 111 001 111 110 111 001 111 110 111 001 111 110 111 001 111 110 111 001 111 110 111 001 111 110 111 001 111 110 111 001 111 110 111 001 111 110 111 001 111 110...
result:
ok ok (1 test case)
Test #26:
score: 0
Accepted
time: 0ms
memory: 3576kb
input:
1 998 3
output:
2246 111 110 111 001 111 110 111 001 111 110 111 001 111 110 111 001 111 110 111 001 111 110 111 001 111 110 111 001 111 110 111 001 111 110 111 001 111 110 111 001 111 110 111 001 111 110 111 001 111 110 111 001 111 110 111 001 111 110 111 001 111 110 111 001 111 110 111 001 111 110 111 001 111 110...
result:
ok ok (1 test case)
Test #27:
score: 0
Accepted
time: 1ms
memory: 3476kb
input:
1 999 3
output:
2249 111 110 111 001 111 110 111 001 111 110 111 001 111 110 111 001 111 110 111 001 111 110 111 001 111 110 111 001 111 110 111 001 111 110 111 001 111 110 111 001 111 110 111 001 111 110 111 001 111 110 111 001 111 110 111 001 111 110 111 001 111 110 111 001 111 110 111 001 111 110 111 001 111 110...
result:
ok ok (1 test case)
Test #28:
score: 0
Accepted
time: 1ms
memory: 3548kb
input:
1 1000 3
output:
2250 111 110 111 001 111 110 111 001 111 110 111 001 111 110 111 001 111 110 111 001 111 110 111 001 111 110 111 001 111 110 111 001 111 110 111 001 111 110 111 001 111 110 111 001 111 110 111 001 111 110 111 001 111 110 111 001 111 110 111 001 111 110 111 001 111 110 111 001 111 110 111 001 111 110...
result:
ok ok (1 test case)
Test #29:
score: 0
Accepted
time: 0ms
memory: 3528kb
input:
1 2 997
output:
1496 1011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101...
result:
ok ok (1 test case)
Test #30:
score: 0
Accepted
time: 2ms
memory: 3448kb
input:
1 2 998
output:
1497 1011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101...
result:
ok ok (1 test case)
Test #31:
score: 0
Accepted
time: 2ms
memory: 3452kb
input:
1 2 999
output:
1499 1011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101...
result:
ok ok (1 test case)
Test #32:
score: 0
Accepted
time: 2ms
memory: 3484kb
input:
1 2 1000
output:
1500 1011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101110111011101...
result:
ok ok (1 test case)
Test #33:
score: 0
Accepted
time: 3ms
memory: 3652kb
input:
1 997 2
output:
1496 11 01 11 10 11 01 11 10 11 01 11 10 11 01 11 10 11 01 11 10 11 01 11 10 11 01 11 10 11 01 11 10 11 01 11 10 11 01 11 10 11 01 11 10 11 01 11 10 11 01 11 10 11 01 11 10 11 01 11 10 11 01 11 10 11 01 11 10 11 01 11 10 11 01 11 10 11 01 11 10 11 01 11 10 11 01 11 10 11 01 11 10 11 01 11 10 11 01 1...
result:
ok ok (1 test case)
Test #34:
score: 0
Accepted
time: 3ms
memory: 3556kb
input:
1 998 2
output:
1497 10 11 01 11 10 11 01 11 10 11 01 11 10 11 01 11 10 11 01 11 10 11 01 11 10 11 01 11 10 11 01 11 10 11 01 11 10 11 01 11 10 11 01 11 10 11 01 11 10 11 01 11 10 11 01 11 10 11 01 11 10 11 01 11 10 11 01 11 10 11 01 11 10 11 01 11 10 11 01 11 10 11 01 11 10 11 01 11 10 11 01 11 10 11 01 11 10 11 0...
result:
ok ok (1 test case)
Test #35:
score: 0
Accepted
time: 3ms
memory: 3548kb
input:
1 999 2
output:
1499 11 01 11 10 11 01 11 10 11 01 11 10 11 01 11 10 11 01 11 10 11 01 11 10 11 01 11 10 11 01 11 10 11 01 11 10 11 01 11 10 11 01 11 10 11 01 11 10 11 01 11 10 11 01 11 10 11 01 11 10 11 01 11 10 11 01 11 10 11 01 11 10 11 01 11 10 11 01 11 10 11 01 11 10 11 01 11 10 11 01 11 10 11 01 11 10 11 01 1...
result:
ok ok (1 test case)
Test #36:
score: 0
Accepted
time: 3ms
memory: 3628kb
input:
1 1000 2
output:
1500 10 11 01 11 10 11 01 11 10 11 01 11 10 11 01 11 10 11 01 11 10 11 01 11 10 11 01 11 10 11 01 11 10 11 01 11 10 11 01 11 10 11 01 11 10 11 01 11 10 11 01 11 10 11 01 11 10 11 01 11 10 11 01 11 10 11 01 11 10 11 01 11 10 11 01 11 10 11 01 11 10 11 01 11 10 11 01 11 10 11 01 11 10 11 01 11 10 11 0...
result:
ok ok (1 test case)