#include<bits/stdc++.h>
using namespace std;
typedef long long ll;
#define pb push_back
#define sz(x) (int)(x.size())
#define itr(x) x.begin(), x.end()
#define prv(x) for(auto& i : x) cout << i << " "; cout << "\n";
#ifdef LOCAL
#define debug(...) cerr << #__VA_ARGS__ << " : "; for(auto& i : {__VA_ARGS__}) cerr << i << " "; cerr << "\n";
#else
#define debug(...)
#endif
int main() {
ios_base::sync_with_stdio(0);
cin.tie(0);
int n;
cin >> n;
int st = -1, en = -1, stv = -1, env = -1;
vector<int> zz, oo, zo, oz;
for(int i = 0; i < n; i++) {
int t, v;
cin >> t >> v;
if(t == 1) {
zo.pb(v);
} else if(t == 2) {
zz.pb(v);
} else if(t == 3) {
oo.pb(v);
} else if(t == 4) {
oz.pb(v);
} else if(t == 5) {
st = 1;
stv = v;
} else if(t == 6) {
st = 0;
stv = v;
} else if(t == 7) {
en = 0;
env = v;
} else if(t == 8) {
en = 1;
env = v;
}
}
function<bool(int,int,int,int,int,int)> ispos = [&](int s, int e, int zzs, int oos, int zos, int ozs) {
bool pos = 1;
pos &= zzs >= 0;
pos &= ozs >= 0;
pos &= oos >= 0;
pos &= zos >= 0;
if(s == e) {
pos &= (zos == ozs);
if(s == 0 && oos > 0) {
pos &= (zos > 0);
}
if(s == 1 && zzs > 0) {
pos &= (ozs > 0);
}
} else if(s == 1) {
pos &= ozs - zos > 0;
} else {
pos &= zos - ozs > 0;
}
return pos;
};
if(!ispos(st,en, sz(zz), sz(oo), sz(zo), sz(oz))) {
cout << -1 << "\n";
return 0;
}
sort(itr(zz), greater<int>());
sort(itr(oo), greater<int>());
sort(itr(zo), greater<int>());
sort(itr(oz), greater<int>());
vector<int> ans;
for(int i = 0, p = st; i < n - 2; i++) {
array<int,2> mnopt = {INT_MAX, -1};
debug(0, en, sz(zz), sz(oo), sz(zo), sz(oz));
if(p == 0 && ispos(0, en, sz(zz) - 1, sz(oo), sz(zo), sz(oz))) {
mnopt = min(mnopt, {zz.back(), 0});
}
if(p == 1 && ispos(1, en, sz(zz), sz(oo) - 1, sz(zo), sz(oz))) {
mnopt = min(mnopt, {oo.back(), 1});
}
if(p == 0 && ispos(1, en, sz(zz), sz(oo), sz(zo) - 1, sz(oz))) {
mnopt = min(mnopt, {zo.back(), 2});
}
if(p == 1 && ispos(0, en, sz(zz), sz(oo), sz(zo), sz(oz) - 1)) {
mnopt = min(mnopt, {oz.back(), 3});
}
debug(mnopt[0], mnopt[1]);
ans.pb(mnopt[0]);
if(mnopt[1] == 0) {
p = 0;
zz.pop_back();
}
if(mnopt[1] == 1) {
p = 1;
oo.pop_back();
}
if(mnopt[1] == 2) {
p = 1;
zo.pop_back();
}
if(mnopt[1] == 3) {
p = 0;
oz.pop_back();
}
debug(p);
}
cout << stv << " ";
for(int i : ans) {
cout << i << " ";
}
cout << env << "\n";
}
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
328 KB |
Output is correct |
2 |
Correct |
0 ms |
212 KB |
Output is correct |
3 |
Correct |
0 ms |
324 KB |
Output is correct |
4 |
Correct |
0 ms |
212 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
212 KB |
Output is correct |
2 |
Correct |
1 ms |
320 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
25 ms |
1988 KB |
Output is correct |
2 |
Correct |
13 ms |
852 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
27 ms |
1932 KB |
Output is correct |
2 |
Correct |
14 ms |
892 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
17 ms |
848 KB |
Output is correct |
2 |
Correct |
27 ms |
2044 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
14 ms |
828 KB |
Output is correct |
2 |
Correct |
25 ms |
2260 KB |
Output is correct |
3 |
Correct |
29 ms |
2468 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
29 ms |
1988 KB |
Output is correct |
2 |
Correct |
14 ms |
1432 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
28 ms |
1880 KB |
Output is correct |
2 |
Correct |
13 ms |
832 KB |
Output is correct |
3 |
Correct |
32 ms |
2476 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Incorrect |
26 ms |
2156 KB |
Output isn't correct |
2 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
30 ms |
2228 KB |
Output is correct |
2 |
Correct |
13 ms |
1316 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
30 ms |
1988 KB |
Output is correct |
2 |
Correct |
13 ms |
1360 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
29 ms |
2152 KB |
Output is correct |
2 |
Correct |
14 ms |
1336 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
24 ms |
2068 KB |
Output is correct |
2 |
Correct |
19 ms |
1404 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
25 ms |
2052 KB |
Output is correct |
2 |
Correct |
15 ms |
1356 KB |
Output is correct |