Task: | Witch game |
Sender: | koosaga |
Submission time: | 2017-01-21 08:58:26 +0200 |
Language: | C++ |
Status: | READY |
Result: | 0 |
group | verdict | score |
---|---|---|
#1 | WRONG ANSWER | 0 |
#2 | WRONG ANSWER | 0 |
#3 | WRONG ANSWER | 0 |
test | verdict | time | group | |
---|---|---|---|---|
#1 | WRONG ANSWER | 0.03 s | 1 | details |
#2 | ACCEPTED | 0.07 s | 1 | details |
#3 | WRONG ANSWER | 0.04 s | 1 | details |
#4 | WRONG ANSWER | 0.04 s | 1 | details |
#5 | WRONG ANSWER | 0.04 s | 1 | details |
#6 | WRONG ANSWER | 0.05 s | 2 | details |
#7 | ACCEPTED | 0.02 s | 2 | details |
#8 | WRONG ANSWER | 0.05 s | 2 | details |
#9 | WRONG ANSWER | 0.03 s | 2 | details |
#10 | ACCEPTED | 0.05 s | 2 | details |
#11 | WRONG ANSWER | 0.07 s | 3 | details |
#12 | ACCEPTED | 0.07 s | 3 | details |
#13 | WRONG ANSWER | 0.05 s | 3 | details |
#14 | WRONG ANSWER | 0.08 s | 3 | details |
#15 | WRONG ANSWER | 0.09 s | 3 | details |
Compiler report
input/code.cpp: In function 'int main()': input/code.cpp:23:16: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&n); ^ input/code.cpp:25:20: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&p[i]); ^
Code
#include <bits/stdc++.h> using namespace std; typedef long long lint; typedef long double llf; int n; vector<int> gph[100005]; vector<int> dfn; int vis[100005], sz[100005], p[100005]; void dfs(int x){ if(vis[x]) return; vis[x] = 1; dfn.push_back(x); for(auto &i : gph[x]) dfs(i); } lint nc2(lint x){ return x * (x-1) / 2; } int main(){ scanf("%d",&n); for(int i=1; i<=n; i++){ scanf("%d",&p[i]); gph[i].push_back(p[i]); gph[p[i]].push_back(i); } for(int i=1; i<=n; i++){ if(!vis[i]){ dfn.clear(); dfs(i); for(auto &j : dfn){ sz[j] = dfn.size(); } } } lint ans = 0; for(int i=1; i<=n; i++){ if(p[p[p[i]]] == i) ans++; ans += nc2(n - gph[i].size() - 1); for(auto &j : gph[i]){ ans += gph[j].size(); } ans -= n; } cout << ans/3; }
Test details
Test 1
Group: 1
Verdict: WRONG ANSWER
input |
---|
100 2 1 4 3 6 5 8 7 10 9 12 11 14 ... |
correct output |
---|
156800 |
user output |
---|
152000 |
Test 2
Group: 1
Verdict: ACCEPTED
input |
---|
100 2 3 4 5 6 7 8 9 10 11 12 13 14... |
correct output |
---|
152000 |
user output |
---|
152000 |
Test 3
Group: 1
Verdict: WRONG ANSWER
input |
---|
100 2 1 1 1 1 1 1 1 1 1 1 1 1 1 1 ... |
correct output |
---|
156849 |
user output |
---|
156851 |
Test 4
Group: 1
Verdict: WRONG ANSWER
input |
---|
100 2 3 1 5 6 4 8 9 7 11 12 10 14 ... |
correct output |
---|
151968 |
user output |
---|
152034 |
Test 5
Group: 1
Verdict: WRONG ANSWER
input |
---|
100 8 98 100 62 42 36 95 70 22 49 ... |
correct output |
---|
152040 |
user output |
---|
152042 |
Test 6
Group: 2
Verdict: WRONG ANSWER
input |
---|
5000 2 1 4 3 6 5 8 7 10 9 12 11 14 ... |
correct output |
---|
20808340000 |
user output |
---|
20795850000 |
Test 7
Group: 2
Verdict: ACCEPTED
input |
---|
5000 2 3 4 5 6 7 8 9 10 11 12 13 14... |
correct output |
---|
20795850000 |
user output |
---|
20795850000 |
Test 8
Group: 2
Verdict: WRONG ANSWER
input |
---|
5000 2 1 1 1 1 1 1 1 1 1 1 1 1 1 1 ... |
correct output |
---|
20808342499 |
user output |
---|
20808342501 |
Test 9
Group: 2
Verdict: WRONG ANSWER
input |
---|
5000 2 3 1 5 6 4 8 9 7 11 12 10 14 ... |
correct output |
---|
20795848337 |
user output |
---|
20795851669 |
Test 10
Group: 2
Verdict: ACCEPTED
input |
---|
5000 283 2880 2565 3289 4160 936 39... |
correct output |
---|
20795852465 |
user output |
---|
20795852465 |
Test 11
Group: 3
Verdict: WRONG ANSWER
input |
---|
100000 2 1 4 3 6 5 8 7 10 9 12 11 14 ... |
correct output |
---|
166656666800000 |
user output |
---|
166651667000000 |
Test 12
Group: 3
Verdict: ACCEPTED
input |
---|
100000 2 3 4 5 6 7 8 9 10 11 12 13 14... |
correct output |
---|
166651667000000 |
user output |
---|
166651667000000 |
Test 13
Group: 3
Verdict: WRONG ANSWER
input |
---|
100000 2 1 1 1 1 1 1 1 1 1 1 1 1 1 1 ... |
correct output |
---|
166656666849999 |
user output |
---|
166656666850001 |
Test 14
Group: 3
Verdict: WRONG ANSWER
input |
---|
100000 2 3 1 5 6 4 8 9 7 11 12 10 14 ... |
correct output |
---|
166651666966668 |
user output |
---|
166651667033334 |
Test 15
Group: 3
Verdict: WRONG ANSWER
input |
---|
100000 186 62491 95379 37431 88427 93... |
correct output |
---|
166651667250100 |
user output |
---|
166651667050114 |