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QOJ
ID | 题目 | 提交者 | 结果 | 用时 | 内存 | 语言 | 文件大小 | 提交时间 | 测评时间 |
---|---|---|---|---|---|---|---|---|---|
#366530 | #7178. Bishops | Giga_Cronos# | WA | 19ms | 7352kb | C++23 | 2.4kb | 2024-03-25 05:37:26 | 2024-03-25 05:37:27 |
Judging History
answer
// #pragma GCC optimize("Ofast,no-stack-protector,unroll-loops", \
// "omit-frame-pointer", "inline")
// #pragma GCC target( \
// "sse,sse2,sse3,ssse3,sse4,sse4.1,sse4.2,popcnt,abm,mmx,avx,avx2,fma,tune=native")
// #pragma GCC option("arch=native", "no-zero-upper") // Enable AVX
/// UH Top
#include <bits/stdc++.h>
#define db(x) cerr << #x << ':' << (x) << '\n';
#define all(v) (v).begin(), (v).end()
#define allr(v) (v).rbegin(), (v).rend()
// #define int ll
using namespace std;
typedef long long ll;
typedef unsigned long long ull;
typedef long double ld;
// typedef __int128_t int128;
typedef pair<ll, ll> pii;
typedef pair<ld, ll> pdi;
typedef pair<ld, ld> pdd;
typedef pair<ld, pdd> pdp;
typedef pair<string, ll> psi;
typedef pair<ll, string> pls;
typedef pair<string, string> pss;
typedef pair<ll, pii> pip;
typedef pair<pii, pii> ppp;
typedef complex<ld> point;
typedef vector<point> polygon;
typedef vector<ll> vi;
typedef pair<point, int> ppi;
#define prec(n) \
cout.precision(n); \
cout << fixed
const ll mod = (1e9 + 7);
const ld eps = (1e-9);
const ll oo = (ll)(1e9 + 5);
#define pi acos(-1)
#define MAXN (ll)(1e6 + 5)
// vector<pii> solve(int n, int m) {
// return ans;
// }
int32_t main() {
ios_base::sync_with_stdio(0);
cin.tie(0);
int n, m;
cin >> n >> m;
if (n == m) {
if (n > 1)
cout << 2 * n - 2 << "\n";
else
cout << 1 << '\n';
for (int i = 1; i <= n; i++)
cout << i << ' ' << 1 << "\n";
for (int i = 2; i <= n - 1; i++)
cout << i << ' ' << n << "\n";
return 0;
}
vector<pii> ans;
bool invert = 0;
if (n > m) {
swap(n, m);
invert = 1;
}
for (int i = 1; i <= n; i++)
ans.push_back(pii(i, 1));
for (int i = 1; i <= n; i++)
ans.push_back(pii(i, m));
int l1 = n / 2;
int dst = m - 2 - (2 * l1);
if (dst) {
if (dst == 1 && !(n & 1)) {
ans.push_back(pii(n / 2, (m + 1) / 2));
ans.push_back(pii((n / 2) + 1, (m + 1) / 2));
} else {
for (int i = l1 + 2; i <= m - l1 - 1; i++)
ans.push_back(pii(n / 2 + 1, i));
}
}
for (auto &p : ans) {
if (invert)
swap(p.first, p.second);
}
cout << ans.size() << "\n";
for (auto p : ans)
cout << p.first << ' ' << p.second << "\n";
return 0;
}
詳細信息
Test #1:
score: 100
Accepted
time: 0ms
memory: 3628kb
input:
2 5
output:
6 1 1 2 1 1 5 2 5 1 3 2 3
result:
ok n: 2, m: 5, bishops: 6
Test #2:
score: 0
Accepted
time: 1ms
memory: 3544kb
input:
5 5
output:
8 1 1 2 1 3 1 4 1 5 1 2 5 3 5 4 5
result:
ok n: 5, m: 5, bishops: 8
Test #3:
score: 0
Accepted
time: 16ms
memory: 3788kb
input:
100000 100000
output:
199998 1 1 2 1 3 1 4 1 5 1 6 1 7 1 8 1 9 1 10 1 11 1 12 1 13 1 14 1 15 1 16 1 17 1 18 1 19 1 20 1 21 1 22 1 23 1 24 1 25 1 26 1 27 1 28 1 29 1 30 1 31 1 32 1 33 1 34 1 35 1 36 1 37 1 38 1 39 1 40 1 41 1 42 1 43 1 44 1 45 1 46 1 47 1 48 1 49 1 50 1 51 1 52 1 53 1 54 1 55 1 56 1 57 1 58 1 59 1 60 1 61...
result:
ok n: 100000, m: 100000, bishops: 199998
Test #4:
score: 0
Accepted
time: 19ms
memory: 7304kb
input:
100000 99999
output:
199998 1 1 1 2 1 3 1 4 1 5 1 6 1 7 1 8 1 9 1 10 1 11 1 12 1 13 1 14 1 15 1 16 1 17 1 18 1 19 1 20 1 21 1 22 1 23 1 24 1 25 1 26 1 27 1 28 1 29 1 30 1 31 1 32 1 33 1 34 1 35 1 36 1 37 1 38 1 39 1 40 1 41 1 42 1 43 1 44 1 45 1 46 1 47 1 48 1 49 1 50 1 51 1 52 1 53 1 54 1 55 1 56 1 57 1 58 1 59 1 60 1 ...
result:
ok n: 100000, m: 99999, bishops: 199998
Test #5:
score: 0
Accepted
time: 14ms
memory: 7304kb
input:
100000 50000
output:
149998 1 1 1 2 1 3 1 4 1 5 1 6 1 7 1 8 1 9 1 10 1 11 1 12 1 13 1 14 1 15 1 16 1 17 1 18 1 19 1 20 1 21 1 22 1 23 1 24 1 25 1 26 1 27 1 28 1 29 1 30 1 31 1 32 1 33 1 34 1 35 1 36 1 37 1 38 1 39 1 40 1 41 1 42 1 43 1 44 1 45 1 46 1 47 1 48 1 49 1 50 1 51 1 52 1 53 1 54 1 55 1 56 1 57 1 58 1 59 1 60 1 ...
result:
ok n: 100000, m: 50000, bishops: 149998
Test #6:
score: 0
Accepted
time: 9ms
memory: 5156kb
input:
1 100000
output:
100000 1 1 1 100000 1 2 1 3 1 4 1 5 1 6 1 7 1 8 1 9 1 10 1 11 1 12 1 13 1 14 1 15 1 16 1 17 1 18 1 19 1 20 1 21 1 22 1 23 1 24 1 25 1 26 1 27 1 28 1 29 1 30 1 31 1 32 1 33 1 34 1 35 1 36 1 37 1 38 1 39 1 40 1 41 1 42 1 43 1 44 1 45 1 46 1 47 1 48 1 49 1 50 1 51 1 52 1 53 1 54 1 55 1 56 1 57 1 58 1 5...
result:
ok n: 1, m: 100000, bishops: 100000
Test #7:
score: 0
Accepted
time: 13ms
memory: 7300kb
input:
34535 99889
output:
134423 1 1 2 1 3 1 4 1 5 1 6 1 7 1 8 1 9 1 10 1 11 1 12 1 13 1 14 1 15 1 16 1 17 1 18 1 19 1 20 1 21 1 22 1 23 1 24 1 25 1 26 1 27 1 28 1 29 1 30 1 31 1 32 1 33 1 34 1 35 1 36 1 37 1 38 1 39 1 40 1 41 1 42 1 43 1 44 1 45 1 46 1 47 1 48 1 49 1 50 1 51 1 52 1 53 1 54 1 55 1 56 1 57 1 58 1 59 1 60 1 61...
result:
ok n: 34535, m: 99889, bishops: 134423
Test #8:
score: 0
Accepted
time: 10ms
memory: 5228kb
input:
12231 97889
output:
110119 1 1 2 1 3 1 4 1 5 1 6 1 7 1 8 1 9 1 10 1 11 1 12 1 13 1 14 1 15 1 16 1 17 1 18 1 19 1 20 1 21 1 22 1 23 1 24 1 25 1 26 1 27 1 28 1 29 1 30 1 31 1 32 1 33 1 34 1 35 1 36 1 37 1 38 1 39 1 40 1 41 1 42 1 43 1 44 1 45 1 46 1 47 1 48 1 49 1 50 1 51 1 52 1 53 1 54 1 55 1 56 1 57 1 58 1 59 1 60 1 61...
result:
ok n: 12231, m: 97889, bishops: 110119
Test #9:
score: 0
Accepted
time: 10ms
memory: 5256kb
input:
10000 100000
output:
109998 1 1 2 1 3 1 4 1 5 1 6 1 7 1 8 1 9 1 10 1 11 1 12 1 13 1 14 1 15 1 16 1 17 1 18 1 19 1 20 1 21 1 22 1 23 1 24 1 25 1 26 1 27 1 28 1 29 1 30 1 31 1 32 1 33 1 34 1 35 1 36 1 37 1 38 1 39 1 40 1 41 1 42 1 43 1 44 1 45 1 46 1 47 1 48 1 49 1 50 1 51 1 52 1 53 1 54 1 55 1 56 1 57 1 58 1 59 1 60 1 61...
result:
ok n: 10000, m: 100000, bishops: 109998
Test #10:
score: 0
Accepted
time: 9ms
memory: 5312kb
input:
13 99999
output:
100011 1 1 2 1 3 1 4 1 5 1 6 1 7 1 8 1 9 1 10 1 11 1 12 1 13 1 1 99999 2 99999 3 99999 4 99999 5 99999 6 99999 7 99999 8 99999 9 99999 10 99999 11 99999 12 99999 13 99999 7 8 7 9 7 10 7 11 7 12 7 13 7 14 7 15 7 16 7 17 7 18 7 19 7 20 7 21 7 22 7 23 7 24 7 25 7 26 7 27 7 28 7 29 7 30 7 31 7 32 7 33 7...
result:
ok n: 13, m: 99999, bishops: 100011
Test #11:
score: 0
Accepted
time: 9ms
memory: 5128kb
input:
21 99999
output:
100019 1 1 2 1 3 1 4 1 5 1 6 1 7 1 8 1 9 1 10 1 11 1 12 1 13 1 14 1 15 1 16 1 17 1 18 1 19 1 20 1 21 1 1 99999 2 99999 3 99999 4 99999 5 99999 6 99999 7 99999 8 99999 9 99999 10 99999 11 99999 12 99999 13 99999 14 99999 15 99999 16 99999 17 99999 18 99999 19 99999 20 99999 21 99999 11 12 11 13 11 14...
result:
ok n: 21, m: 99999, bishops: 100019
Test #12:
score: 0
Accepted
time: 15ms
memory: 7352kb
input:
49999 100000
output:
149998 1 1 2 1 3 1 4 1 5 1 6 1 7 1 8 1 9 1 10 1 11 1 12 1 13 1 14 1 15 1 16 1 17 1 18 1 19 1 20 1 21 1 22 1 23 1 24 1 25 1 26 1 27 1 28 1 29 1 30 1 31 1 32 1 33 1 34 1 35 1 36 1 37 1 38 1 39 1 40 1 41 1 42 1 43 1 44 1 45 1 46 1 47 1 48 1 49 1 50 1 51 1 52 1 53 1 54 1 55 1 56 1 57 1 58 1 59 1 60 1 61...
result:
ok n: 49999, m: 100000, bishops: 149998
Test #13:
score: 0
Accepted
time: 6ms
memory: 7244kb
input:
33333 99999
output:
133331 1 1 2 1 3 1 4 1 5 1 6 1 7 1 8 1 9 1 10 1 11 1 12 1 13 1 14 1 15 1 16 1 17 1 18 1 19 1 20 1 21 1 22 1 23 1 24 1 25 1 26 1 27 1 28 1 29 1 30 1 31 1 32 1 33 1 34 1 35 1 36 1 37 1 38 1 39 1 40 1 41 1 42 1 43 1 44 1 45 1 46 1 47 1 48 1 49 1 50 1 51 1 52 1 53 1 54 1 55 1 56 1 57 1 58 1 59 1 60 1 61...
result:
ok n: 33333, m: 99999, bishops: 133331
Test #14:
score: 0
Accepted
time: 3ms
memory: 5184kb
input:
23342 98876
output:
122216 1 1 2 1 3 1 4 1 5 1 6 1 7 1 8 1 9 1 10 1 11 1 12 1 13 1 14 1 15 1 16 1 17 1 18 1 19 1 20 1 21 1 22 1 23 1 24 1 25 1 26 1 27 1 28 1 29 1 30 1 31 1 32 1 33 1 34 1 35 1 36 1 37 1 38 1 39 1 40 1 41 1 42 1 43 1 44 1 45 1 46 1 47 1 48 1 49 1 50 1 51 1 52 1 53 1 54 1 55 1 56 1 57 1 58 1 59 1 60 1 61...
result:
ok n: 23342, m: 98876, bishops: 122216
Test #15:
score: 0
Accepted
time: 14ms
memory: 7320kb
input:
56713 91234
output:
147946 1 1 2 1 3 1 4 1 5 1 6 1 7 1 8 1 9 1 10 1 11 1 12 1 13 1 14 1 15 1 16 1 17 1 18 1 19 1 20 1 21 1 22 1 23 1 24 1 25 1 26 1 27 1 28 1 29 1 30 1 31 1 32 1 33 1 34 1 35 1 36 1 37 1 38 1 39 1 40 1 41 1 42 1 43 1 44 1 45 1 46 1 47 1 48 1 49 1 50 1 51 1 52 1 53 1 54 1 55 1 56 1 57 1 58 1 59 1 60 1 61...
result:
ok n: 56713, m: 91234, bishops: 147946
Test #16:
score: 0
Accepted
time: 16ms
memory: 3824kb
input:
99995 99995
output:
199988 1 1 2 1 3 1 4 1 5 1 6 1 7 1 8 1 9 1 10 1 11 1 12 1 13 1 14 1 15 1 16 1 17 1 18 1 19 1 20 1 21 1 22 1 23 1 24 1 25 1 26 1 27 1 28 1 29 1 30 1 31 1 32 1 33 1 34 1 35 1 36 1 37 1 38 1 39 1 40 1 41 1 42 1 43 1 44 1 45 1 46 1 47 1 48 1 49 1 50 1 51 1 52 1 53 1 54 1 55 1 56 1 57 1 58 1 59 1 60 1 61...
result:
ok n: 99995, m: 99995, bishops: 199988
Test #17:
score: 0
Accepted
time: 3ms
memory: 5224kb
input:
12345 54321
output:
66665 1 1 2 1 3 1 4 1 5 1 6 1 7 1 8 1 9 1 10 1 11 1 12 1 13 1 14 1 15 1 16 1 17 1 18 1 19 1 20 1 21 1 22 1 23 1 24 1 25 1 26 1 27 1 28 1 29 1 30 1 31 1 32 1 33 1 34 1 35 1 36 1 37 1 38 1 39 1 40 1 41 1 42 1 43 1 44 1 45 1 46 1 47 1 48 1 49 1 50 1 51 1 52 1 53 1 54 1 55 1 56 1 57 1 58 1 59 1 60 1 61 ...
result:
ok n: 12345, m: 54321, bishops: 66665
Test #18:
score: 0
Accepted
time: 12ms
memory: 7296kb
input:
90000 92000
output:
181998 1 1 2 1 3 1 4 1 5 1 6 1 7 1 8 1 9 1 10 1 11 1 12 1 13 1 14 1 15 1 16 1 17 1 18 1 19 1 20 1 21 1 22 1 23 1 24 1 25 1 26 1 27 1 28 1 29 1 30 1 31 1 32 1 33 1 34 1 35 1 36 1 37 1 38 1 39 1 40 1 41 1 42 1 43 1 44 1 45 1 46 1 47 1 48 1 49 1 50 1 51 1 52 1 53 1 54 1 55 1 56 1 57 1 58 1 59 1 60 1 61...
result:
ok n: 90000, m: 92000, bishops: 181998
Test #19:
score: 0
Accepted
time: 5ms
memory: 5228kb
input:
10000 70000
output:
79998 1 1 2 1 3 1 4 1 5 1 6 1 7 1 8 1 9 1 10 1 11 1 12 1 13 1 14 1 15 1 16 1 17 1 18 1 19 1 20 1 21 1 22 1 23 1 24 1 25 1 26 1 27 1 28 1 29 1 30 1 31 1 32 1 33 1 34 1 35 1 36 1 37 1 38 1 39 1 40 1 41 1 42 1 43 1 44 1 45 1 46 1 47 1 48 1 49 1 50 1 51 1 52 1 53 1 54 1 55 1 56 1 57 1 58 1 59 1 60 1 61 ...
result:
ok n: 10000, m: 70000, bishops: 79998
Test #20:
score: -100
Wrong Answer
time: 8ms
memory: 5104kb
input:
10000 70001
output:
79999 1 1 2 1 3 1 4 1 5 1 6 1 7 1 8 1 9 1 10 1 11 1 12 1 13 1 14 1 15 1 16 1 17 1 18 1 19 1 20 1 21 1 22 1 23 1 24 1 25 1 26 1 27 1 28 1 29 1 30 1 31 1 32 1 33 1 34 1 35 1 36 1 37 1 38 1 39 1 40 1 41 1 42 1 43 1 44 1 45 1 46 1 47 1 48 1 49 1 50 1 51 1 52 1 53 1 54 1 55 1 56 1 57 1 58 1 59 1 60 1 61 ...
result:
wrong answer Participant's answer is not optimal (79999 < 80000)