CSES - Datatähti 2023 alku - Results
Submission details
Task:Ruudukko
Sender:vgtcross
Submission time:2023-05-24 00:03:33 +0300
Language:C++ (C++20)
Status:READY
Result:100
Feedback
groupverdictscore
#1ACCEPTED28
#2ACCEPTED33
#3ACCEPTED39
Test results
testverdicttimegroup
#1ACCEPTED0.00 s1, 2, 3details
#2ACCEPTED0.00 s1, 2, 3details
#3ACCEPTED0.00 s1, 2, 3details
#4ACCEPTED0.01 s2, 3details
#5ACCEPTED0.01 s2, 3details
#6ACCEPTED0.01 s2, 3details
#7ACCEPTED0.18 s3details
#8ACCEPTED0.19 s3details
#9ACCEPTED0.27 s3details

Code

#include <bits/stdc++.h>
#define MODE 0
#if MODE == 0
#define debug(x) cout << #x << ": " << x << endl
#define log(x) cout << x << endl
#define test(x) x
#else
#define debug(x)
#define log(x)
#define test(x)
#endif
#define M 1000000007
#define all(x) (x).begin(),(x).end()
#define rall(x) (x).rbegin(),(x).rend()
#define fi first
#define se second
using namespace std;
using ll = long long;
using ld = long double;
using uint = unsigned int;
using ull = unsigned long long;
using pii = pair<int, int>;
using pli = pair<ll, int>;
using pll = pair<ll, ll>;
const int N = 1010;
ll r[N], c[N];
void solve() {
int n;
cin >> n;
vector<array<ll, 3>> v(n*n);
for (int i = 0; i < n; ++i) {
for (int j = 0; j < n; ++j) {
cin >> v[i*n+j][0];
v[i*n+j][1] = i;
v[i*n+j][2] = j;
}
}
sort(all(v));
int p = 0;
vector<array<ll, 3>> que;
ll ans = 0;
for (int i = 0; i < n*n; ++i) {
if (v[i][0] > p) {
for (auto a: que) {
r[a[1]] = (r[a[1]] + a[0]) % M;
c[a[2]] = (c[a[2]] + a[0]) % M;
}
que.clear();
}
array<ll, 3> a = v[i];
a[0] = (r[a[1]] + c[a[2]] + 1) % M;
ans = (ans + a[0]) % M;
que.emplace_back(a);
p = v[i][0];
}
cout << ans << '\n';
}
int main() {
ios_base::sync_with_stdio(0);
cin.tie(nullptr);
solve();
return 0;
}

Test details

Test 1

Group: 1, 2, 3

Verdict: ACCEPTED

input
3
1 1 1
1 1 1
1 1 1

correct output
9

user output
9

Test 2

Group: 1, 2, 3

Verdict: ACCEPTED

input
3
1 2 3
6 5 4
7 8 9

correct output
135

user output
135

Test 3

Group: 1, 2, 3

Verdict: ACCEPTED

input
3
7 8 1
4 5 4
3 9 6

correct output
57

user output
57

Test 4

Group: 2, 3

Verdict: ACCEPTED

input
100
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 ...

correct output
10000

user output
10000

Test 5

Group: 2, 3

Verdict: ACCEPTED

input
100
1 2 3 4 5 6 7 8 9 10 11 12 13 ...

correct output
187458477

user output
187458477

Test 6

Group: 2, 3

Verdict: ACCEPTED

input
100
2995 8734 1018 2513 7971 5063 ...

correct output
964692694

user output
964692694

Test 7

Group: 3

Verdict: ACCEPTED

input
1000
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 ...

correct output
1000000

user output
1000000

Test 8

Group: 3

Verdict: ACCEPTED

input
1000
1 2 3 4 5 6 7 8 9 10 11 12 13 ...

correct output
229147081

user output
229147081

Test 9

Group: 3

Verdict: ACCEPTED

input
1000
520283 805991 492643 75254 527...

correct output
951147313

user output
951147313