CSES - Datatähti 2023 alku - Results
Submission details
Task:Ruudukko
Sender:stpn129
Submission time:2022-11-02 20:31:36 +0200
Language:C++ (C++17)
Status:READY
Result:0
Feedback
groupverdictscore
#10
#20
#30
Test results
testverdicttimegroup
#10.00 s1, 2, 3details
#20.00 s1, 2, 3details
#30.00 s1, 2, 3details
#40.01 s2, 3details
#50.01 s2, 3details
#60.01 s2, 3details
#7--3details
#8--3details
#9--3details

Code

#include "bits/stdc++.h"
using namespace std;
void init_code() {
ios_base::sync_with_stdio(false);
cin.tie(NULL);
#ifndef ONLINE_JUDGE
freopen("input.txt", "r", stdin);
freopen("output.txt", "w", stdout);
#endif
}
const int mod = 1e9 + 7;
void solve() {
int n;
cin >> n;
vector<vector<int>> a(n, vector<int> (n));
for (int i = 0; i < n; ++i) {
for (int j = 0; j < n; ++j) {
cin >> a[i][j];
}
}
int res = 0;
for (int i = 0; i < n; ++i) {
for (int j = 0; j < n; ++j) {
for (int x = 0; x < n; ++x) {
if (a[x][j] < a[i][j]) {
//g[i * n + j][x * n + j]++;
res += 1;
}
}
for (int y = 0; y < n; ++y) {
if (a[i][y] < a[i][j]) {
//g[i * n + j][i * n + y]++;
res += 1;
}
}
}
}
res += n * n;
res *= 2;
res %= mod;
cout << res << '\n';
}
signed main() {
init_code();
int t = 1;
//cin >> t;
while (t--) {
solve();
}
return 0;
}
/*
int dfs (int v, int n, vector<int>& used, vector<int>& p, vector<int> g[], vector<int>& f) {
int res = 0;
if (used[v]) {
return p[v] % mod;
}
used[v] = 1;
for (int i = 0; i < g[v].size(); ++i) {
p[g[v][i]] = f[g[v][i]] + dfs(g[v][i], n, used, p, g, f);
}
return p[v] % mod;
}
void solve() {
int n;
cin >> n;
vector<vector<int>> a(n, vector<int> (n));
for (int i = 0; i < n; ++i) {
for (int j = 0; j < n; ++j) {
cin >> a[i][j];
}
}
vector<int> g[n * n];
vector<int> f(n * n, 1), p(n * n), used(n * n);
for (int i = 0; i < n; ++i) {
for (int j = 0; j < n; ++j) {
for (int x = 0; x < n; ++x) {
if (a[x][j] < a[i][j]) {
//g[i * n + j].push_back(x * n + j);
f[x * n + j]++;
//g[x * n + j].push_back(i * n + j);
}
}
for (int y = 0; y < n; ++y) {
if (a[i][y] < a[i][j]) {
//g[i * n + j].push_back(i * n + y);
f[i * n + y]++;
//g[i * n + y].push_back(i * n + j);
}
}
}
}
int res = 0;
for (int i = 0; i < n * n; ++i) {
if (!used[i]) {
dfs(i, n, used, p, g, f);
}
}
for (int i = 0; i < n * n; ++i) {
res += p[i] % mod;
}
res += n * n;
res %= mod;
cout << res << '\n';
}
*/

Test details

Test 1

Group: 1, 2, 3

Verdict:

input
3
1 1 1
1 1 1
1 1 1

correct output
9

user output
18

Test 2

Group: 1, 2, 3

Verdict:

input
3
1 2 3
6 5 4
7 8 9

correct output
135

user output
54

Test 3

Group: 1, 2, 3

Verdict:

input
3
7 8 1
4 5 4
3 9 6

correct output
57

user output
52

Test 4

Group: 2, 3

Verdict:

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

correct output
10000

user output
20000

Test 5

Group: 2, 3

Verdict:

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

correct output
187458477

user output
2000000

Test 6

Group: 2, 3

Verdict:

input
100
2995 8734 1018 2513 7971 5063 ...

correct output
964692694

user output
1999804

Test 7

Group: 3

Verdict:

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

correct output
1000000

user output
(empty)

Test 8

Group: 3

Verdict:

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

correct output
229147081

user output
(empty)

Test 9

Group: 3

Verdict:

input
1000
520283 805991 492643 75254 527...

correct output
951147313

user output
(empty)