Task: | Ruudukko |
Sender: | UpHereNorth |
Submission time: | 2022-10-31 01:47:29 +0200 |
Language: | C++ (C++17) |
Status: | READY |
Result: | 100 |
group | verdict | score |
---|---|---|
#1 | ACCEPTED | 28 |
#2 | ACCEPTED | 33 |
#3 | ACCEPTED | 39 |
test | verdict | time | group | |
---|---|---|---|---|
#1 | ACCEPTED | 0.00 s | 1, 2, 3 | details |
#2 | ACCEPTED | 0.00 s | 1, 2, 3 | details |
#3 | ACCEPTED | 0.00 s | 1, 2, 3 | details |
#4 | ACCEPTED | 0.01 s | 2, 3 | details |
#5 | ACCEPTED | 0.01 s | 2, 3 | details |
#6 | ACCEPTED | 0.01 s | 2, 3 | details |
#7 | ACCEPTED | 0.14 s | 3 | details |
#8 | ACCEPTED | 0.19 s | 3 | details |
#9 | ACCEPTED | 0.27 s | 3 | details |
Code
#include <bits/stdc++.h>using namespace std;using ll = long long;const int N =1e5;const int inf = 1e9;const ll mod = 1e9 + 7;int main(){ios::sync_with_stdio(0); cin.tie(0);int n;cin >> n;vector<vector<int>> a(n, vector<int> (n));vector<pair<int, pair<int, int>>> m;for(int i = 0; i < n; ++i){for(int j = 0; j < n; ++j){cin >> a[i][j];m.push_back({a[i][j], {i, j}});}}sort(m.begin(), m.end());vector<vector<ll>> ans(n, vector<ll> (n));vector<ll> cols(n), rows(n);ll sum = 0;int pre = 1, prei = 0;for(int i = 0; i < n * n; ++i){auto [val, p] = m[i];if(val != pre){pre = val;for(int j = prei; j < i; ++j){auto [val2, p2] = m[j];int y = p2.first, x = p2.second;sum+=ans[y][x];sum%=mod;cols[x]+=ans[y][x];cols[x]%=mod;rows[y]+=ans[y][x];rows[y]%=mod;}prei = i;}int y = p.first, x = p.second;ans[y][x] = 1;ans[y][x] += cols[x];ans[y][x] %= mod;ans[y][x] += rows[y];ans[y][x] %= mod;}for(int i = prei; i < n * n; ++i){auto [val, p] = m[i];int y = p.first, x = p.second;sum+=ans[y][x];sum%=mod;}cout << sum << "\n";}
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 |