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QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#810443 | #7970. 三步棋 | Geekmen | AC ✓ | 1ms | 3600kb | C++14 | 2.2kb | 2024-12-11 22:38:11 | 2024-12-11 22:38:12 |
Judging History
answer
#include <bits/stdc++.h>
using namespace std;
namespace pattern {
char dp[1 << 25];
vector<pair<int, int>> d;
int code(int i, int j) {
return i * 5 + j;
}
char DP(int gr, int step) {
if (dp[gr]) return dp[gr];
auto out = [&](int x, int y) -> bool {
return x < 0 || y < 0 || x > 4 || y > 4 || !(gr >> code(x, y) & 1);
};
auto sc = gr;
dp[sc] = 2;
for (int i = 0; i < 5; i ++)
for (int j = 0; j < 5; j ++) {
if (gr >> code(i, j) & 1) continue;
gr ^= (1 << code(i, j));
bool match = 0;
for (int ch = 0; ch < d.size(); ch ++) {
int ok = 1, sx = i - d[ch].first, sy = j - d[ch].second;
for (int k = 0; k < d.size(); k ++)
if (out(sx + d[k].first, sy + d[k].second)) {
ok = 0;
break;
}
if (ok) {
if ((step + 1) % 3 == 0) return dp[sc] = 1;
match = 1;
break;
}
}
if (!match && DP(gr, step + 1) == 2) return dp[sc] = 1;
gr ^= (1 << code(i, j));
}
return 2;
}
void solve() {
memset(dp, 0, sizeof dp);
d.clear();
vector<vector<char>> gr(5, vector<char>(5));
int x = -1, y;
for (int i = 0; i < 5; i ++)
for (int j = 0; j < 5; j ++) {
cin >> gr[i][j];
if (gr[i][j] == 'o') {
if (x == -1) x = i, y = j;
d.push_back({i - x, j - y});
}
}
if (DP(0, 0) == 1) cout << "Far" << endl;
else cout << "Away" << endl;
}
}
namespace std {
void solve() {
int mnx = 5, mny = 5, mxx = -1, mxy = -1, cnt = 0;
for (int i = 0; i < 5; i ++)
for (int j = 0; j < 5; j ++) {
char x;
cin >> x;
if (x == 'o') {
mnx = min(mnx, i), mny = min(mny, j);
mxx = max(mxx, i), mxy = max(mxy, j);
cnt ++;
}
}
if (cnt == 1) cout << "Away" << endl;
else if (cnt == 2) cout << "Far" << endl;
else if (cnt == 3) cout << "Away" << endl;
else {
if ((mxx - mnx + 1) * (mxy - mny + 1) == cnt) cout << "Away" << endl;
else cout << "Far" << endl;
}
}
}
int main() {
int T;
cin >> T;
while (T -- ) std::solve();
}
/*
1
oooo.
.....
.....
.....
.....
Away
1
...o.
.ooo.
.....
.....
.....
Far
1
...oo
...oo
.....
.....
.....
Away
1
..o..
.ooo.
.....
.....
.....
Far
*/
Details
Tip: Click on the bar to expand more detailed information
Test #1:
score: 100
Accepted
time: 1ms
memory: 3588kb
input:
200 ..... ..oo. ..... ..... ..... ..... ..... oo... o.... ..... ..... .o... oo... ..... ..... ..... ..... o.... oo... ..... ..... ...o. ..oo. ..... ..... ..... ....o ..... ..... ..... ..... ..... ..... .ooo. .o... ..... ..... ..... ..... ...oo .o... .o... .o... ..... ..... ..... ..... ..oo. ..... .....
output:
Far Away Away Away Away Away Far Far Away Far Away Far Far Away Far Away Far Away Away Away Far Away Far Away Away Away Away Far Far Far Far Away Far Away Far Away Far Away Away Far Away Away Far Far Away Far Far Away Far Away Away Away Away Away Away Far Away Far Away Away Away Away Far Away Far Fa...
result:
ok 200 lines
Test #2:
score: 0
Accepted
time: 1ms
memory: 3600kb
input:
200 ...oo ..oo. ..... ..... ..... ..... ..ooo ....o ..... ..... ..... o.... oo... .o... ..... ..... .ooo. ...o. ..... ..... ..... .oo.. ..oo. ..... ..... ..... ...o. ...o. ...o. ...o. ..... .oo.. ..o.. ..o.. ..... ..o.. ..ooo ..... ..... ..... ..... .oooo ..... ..... ..... ..... ..... o.... oo... o....
output:
Far Far Far Far Far Away Far Far Away Far Far Far Far Away Far Far Far Far Far Far Far Far Far Far Far Away Far Far Far Far Away Far Away Far Far Far Away Far Far Far Far Far Far Far Far Away Far Far Far Far Far Far Away Far Away Far Far Far Away Away Far Far Far Far Away Far Far Far Far Far Far Far...
result:
ok 200 lines