#include <bits/stdc++.h>
using namespace std;
typedef long long int ll;
int main(){
ll n;
cin>>n;
vector<ll> v(n);
bool ban=true;
bool ban2=true;
ll one=0;
ll zero=0;
vector<ll> h(100,0);
vector<ll> htwo(100,0);
for(ll i=0; i<n; i++){
cin>>v[i];
if(v[i]==1){
one++;
}
if(v[i]==0){
zero++;
}
if(i>0 && ban==true){
if(v[i]<v[i-1]) ban=false;
}
if(v[i]>100){
ban2=false;
}else{
h[v[i]]++;
}
}
if(ban==true){
cout<<"0"<<endl;
return 0;
}
if(one+zero==n){
// cout<<"hello"<<endl;
ll zerotwo=0;
ll ans=0;
for(int i=0; i<n; i++){
if(v[i]==0){
zerotwo++;
continue;
}else{
ans+=zerotwo*(zero-zerotwo);
}
}
cout<<ans<<endl;
return 0;
}
if(ban2==true){
ll totall;
ll totalr;
ll ans=0;
for(ll i=0; i<n; i++){
totall=0;
totalr=0;
htwo[v[i]]++;
// cout<<"numero actual "<<v[i]<<endl;
for(ll j=0; j<v[i]; j++){
totall+=htwo[j];
totalr+=(h[j]-htwo[j]);
// cout<<totall<<totalr<<endl;
}
ans+=(totall*totalr);
}
cout<<ans<<endl;
return 0;
}
ll cont=1;
ll ans=0;
ll a,b;
while(cont<n-1){
a=0;
b=0;
for(ll i=0; i<cont; i++){
if(v[i]<v[cont]) a++;
}
for(ll i=cont+1; i<n; i++){
if(v[i]<v[cont]) b++;
}
ans+=a*b;
cont++;
}
cout<<ans<<endl;
return 0;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
212 KB |
Output is correct |
2 |
Correct |
197 ms |
2644 KB |
Output is correct |
3 |
Correct |
219 ms |
2644 KB |
Output is correct |
4 |
Correct |
198 ms |
2644 KB |
Output is correct |
5 |
Correct |
194 ms |
2644 KB |
Output is correct |
6 |
Correct |
184 ms |
2644 KB |
Output is correct |
7 |
Correct |
184 ms |
2644 KB |
Output is correct |
8 |
Correct |
208 ms |
2644 KB |
Output is correct |
9 |
Correct |
187 ms |
2644 KB |
Output is correct |
10 |
Correct |
222 ms |
2764 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
52 ms |
2644 KB |
Output is correct |
2 |
Correct |
45 ms |
2644 KB |
Output is correct |
3 |
Correct |
49 ms |
2644 KB |
Output is correct |
4 |
Correct |
44 ms |
2644 KB |
Output is correct |
5 |
Correct |
46 ms |
2644 KB |
Output is correct |
6 |
Correct |
58 ms |
2644 KB |
Output is correct |
7 |
Correct |
49 ms |
2644 KB |
Output is correct |
8 |
Correct |
39 ms |
2644 KB |
Output is correct |
9 |
Correct |
39 ms |
2644 KB |
Output is correct |
10 |
Correct |
0 ms |
212 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
52 ms |
2644 KB |
Output is correct |
2 |
Correct |
45 ms |
2644 KB |
Output is correct |
3 |
Correct |
49 ms |
2644 KB |
Output is correct |
4 |
Correct |
44 ms |
2644 KB |
Output is correct |
5 |
Correct |
46 ms |
2644 KB |
Output is correct |
6 |
Correct |
58 ms |
2644 KB |
Output is correct |
7 |
Correct |
49 ms |
2644 KB |
Output is correct |
8 |
Correct |
39 ms |
2644 KB |
Output is correct |
9 |
Correct |
39 ms |
2644 KB |
Output is correct |
10 |
Correct |
0 ms |
212 KB |
Output is correct |
11 |
Correct |
61 ms |
2644 KB |
Output is correct |
12 |
Correct |
67 ms |
2644 KB |
Output is correct |
13 |
Correct |
73 ms |
2644 KB |
Output is correct |
14 |
Correct |
60 ms |
2644 KB |
Output is correct |
15 |
Correct |
61 ms |
2644 KB |
Output is correct |
16 |
Correct |
61 ms |
2644 KB |
Output is correct |
17 |
Correct |
70 ms |
2656 KB |
Output is correct |
18 |
Correct |
50 ms |
2644 KB |
Output is correct |
19 |
Correct |
63 ms |
2644 KB |
Output is correct |
20 |
Correct |
0 ms |
212 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
212 KB |
Output is correct |
2 |
Correct |
1 ms |
212 KB |
Output is correct |
3 |
Correct |
1 ms |
212 KB |
Output is correct |
4 |
Correct |
1 ms |
212 KB |
Output is correct |
5 |
Correct |
1 ms |
212 KB |
Output is correct |
6 |
Correct |
1 ms |
212 KB |
Output is correct |
7 |
Correct |
1 ms |
212 KB |
Output is correct |
8 |
Correct |
1 ms |
212 KB |
Output is correct |
9 |
Correct |
1 ms |
212 KB |
Output is correct |
10 |
Correct |
0 ms |
212 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
212 KB |
Output is correct |
2 |
Correct |
1 ms |
212 KB |
Output is correct |
3 |
Correct |
1 ms |
212 KB |
Output is correct |
4 |
Correct |
1 ms |
212 KB |
Output is correct |
5 |
Correct |
1 ms |
212 KB |
Output is correct |
6 |
Correct |
1 ms |
212 KB |
Output is correct |
7 |
Correct |
1 ms |
212 KB |
Output is correct |
8 |
Correct |
1 ms |
212 KB |
Output is correct |
9 |
Correct |
1 ms |
212 KB |
Output is correct |
10 |
Correct |
0 ms |
212 KB |
Output is correct |
11 |
Correct |
83 ms |
356 KB |
Output is correct |
12 |
Correct |
77 ms |
352 KB |
Output is correct |
13 |
Correct |
83 ms |
356 KB |
Output is correct |
14 |
Correct |
78 ms |
356 KB |
Output is correct |
15 |
Correct |
89 ms |
368 KB |
Output is correct |
16 |
Correct |
76 ms |
340 KB |
Output is correct |
17 |
Correct |
73 ms |
340 KB |
Output is correct |
18 |
Correct |
74 ms |
340 KB |
Output is correct |
19 |
Correct |
69 ms |
340 KB |
Output is correct |
20 |
Correct |
0 ms |
212 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
52 ms |
2644 KB |
Output is correct |
2 |
Correct |
45 ms |
2644 KB |
Output is correct |
3 |
Correct |
49 ms |
2644 KB |
Output is correct |
4 |
Correct |
44 ms |
2644 KB |
Output is correct |
5 |
Correct |
46 ms |
2644 KB |
Output is correct |
6 |
Correct |
58 ms |
2644 KB |
Output is correct |
7 |
Correct |
49 ms |
2644 KB |
Output is correct |
8 |
Correct |
39 ms |
2644 KB |
Output is correct |
9 |
Correct |
39 ms |
2644 KB |
Output is correct |
10 |
Correct |
0 ms |
212 KB |
Output is correct |
11 |
Correct |
61 ms |
2644 KB |
Output is correct |
12 |
Correct |
67 ms |
2644 KB |
Output is correct |
13 |
Correct |
73 ms |
2644 KB |
Output is correct |
14 |
Correct |
60 ms |
2644 KB |
Output is correct |
15 |
Correct |
61 ms |
2644 KB |
Output is correct |
16 |
Correct |
61 ms |
2644 KB |
Output is correct |
17 |
Correct |
70 ms |
2656 KB |
Output is correct |
18 |
Correct |
50 ms |
2644 KB |
Output is correct |
19 |
Correct |
63 ms |
2644 KB |
Output is correct |
20 |
Correct |
0 ms |
212 KB |
Output is correct |
21 |
Execution timed out |
2069 ms |
2644 KB |
Time limit exceeded |
22 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
212 KB |
Output is correct |
2 |
Correct |
197 ms |
2644 KB |
Output is correct |
3 |
Correct |
219 ms |
2644 KB |
Output is correct |
4 |
Correct |
198 ms |
2644 KB |
Output is correct |
5 |
Correct |
194 ms |
2644 KB |
Output is correct |
6 |
Correct |
184 ms |
2644 KB |
Output is correct |
7 |
Correct |
184 ms |
2644 KB |
Output is correct |
8 |
Correct |
208 ms |
2644 KB |
Output is correct |
9 |
Correct |
187 ms |
2644 KB |
Output is correct |
10 |
Correct |
222 ms |
2764 KB |
Output is correct |
11 |
Correct |
52 ms |
2644 KB |
Output is correct |
12 |
Correct |
45 ms |
2644 KB |
Output is correct |
13 |
Correct |
49 ms |
2644 KB |
Output is correct |
14 |
Correct |
44 ms |
2644 KB |
Output is correct |
15 |
Correct |
46 ms |
2644 KB |
Output is correct |
16 |
Correct |
58 ms |
2644 KB |
Output is correct |
17 |
Correct |
49 ms |
2644 KB |
Output is correct |
18 |
Correct |
39 ms |
2644 KB |
Output is correct |
19 |
Correct |
39 ms |
2644 KB |
Output is correct |
20 |
Correct |
0 ms |
212 KB |
Output is correct |
21 |
Correct |
61 ms |
2644 KB |
Output is correct |
22 |
Correct |
67 ms |
2644 KB |
Output is correct |
23 |
Correct |
73 ms |
2644 KB |
Output is correct |
24 |
Correct |
60 ms |
2644 KB |
Output is correct |
25 |
Correct |
61 ms |
2644 KB |
Output is correct |
26 |
Correct |
61 ms |
2644 KB |
Output is correct |
27 |
Correct |
70 ms |
2656 KB |
Output is correct |
28 |
Correct |
50 ms |
2644 KB |
Output is correct |
29 |
Correct |
63 ms |
2644 KB |
Output is correct |
30 |
Correct |
0 ms |
212 KB |
Output is correct |
31 |
Correct |
1 ms |
212 KB |
Output is correct |
32 |
Correct |
1 ms |
212 KB |
Output is correct |
33 |
Correct |
1 ms |
212 KB |
Output is correct |
34 |
Correct |
1 ms |
212 KB |
Output is correct |
35 |
Correct |
1 ms |
212 KB |
Output is correct |
36 |
Correct |
1 ms |
212 KB |
Output is correct |
37 |
Correct |
1 ms |
212 KB |
Output is correct |
38 |
Correct |
1 ms |
212 KB |
Output is correct |
39 |
Correct |
1 ms |
212 KB |
Output is correct |
40 |
Correct |
0 ms |
212 KB |
Output is correct |
41 |
Correct |
83 ms |
356 KB |
Output is correct |
42 |
Correct |
77 ms |
352 KB |
Output is correct |
43 |
Correct |
83 ms |
356 KB |
Output is correct |
44 |
Correct |
78 ms |
356 KB |
Output is correct |
45 |
Correct |
89 ms |
368 KB |
Output is correct |
46 |
Correct |
76 ms |
340 KB |
Output is correct |
47 |
Correct |
73 ms |
340 KB |
Output is correct |
48 |
Correct |
74 ms |
340 KB |
Output is correct |
49 |
Correct |
69 ms |
340 KB |
Output is correct |
50 |
Correct |
0 ms |
212 KB |
Output is correct |
51 |
Execution timed out |
2069 ms |
2644 KB |
Time limit exceeded |
52 |
Halted |
0 ms |
0 KB |
- |