CSES - Datatähti 2023 alku - Results
Submission details
Task:Ruudukko
Sender:MikaelM
Submission time:2025-05-03 14:35:07 +0300
Language:C++ (C++17)
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
#7ACCEPTED0.15 s3details
#8ACCEPTED0.19 s3details
#9ACCEPTED0.28 s3details

Code

#include<bits/stdc++.h>
using namespace std;
#define all(x) x.begin(),x.end()
#define rall(x) x.rbegin(),x.rend()
#define fi first
#define se second
using ll = long long;
const int N = 1001, M = 1e9+7;
ll row[N], column[N];
int main() {
ios_base::sync_with_stdio(false);
cin.tie(nullptr);
int n;
cin >> n;
vector<pair<int, pair<int, int>>> v;
for (int i = 1; i <= n; i++) {
for (int j = 1; j <= n; j++) {
int x;
cin >> x;
v.push_back({x, {i, j}});
}
}
sort(all(v));
ll ans = 0;
int p = 0;
stack<pair<ll, pair<int, int>>> st;
for (auto u : v) {
int x = u.fi;
auto [i, j] = u.se;
if (x != p) {
while (!st.empty()) {
auto k = st.top();
st.pop();
row[k.se.fi] += k.fi;
column[k.se.se] += k.fi;
if (row[k.se.fi] > M) row[k.se.fi] %= M;
if (column[k.se.se] > M) column[k.se.se] %= M;
}
p = x;
}
st.push({row[i] + column[j] + 1, {i, j}});
ans += row[i] + column[j] + 1;
if (ans > M) ans %= M;
}
cout << ans << "\n";
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