#include <bits/stdc++.h>
#define int long long
#define pp pair <bool,int>
#define ppi pair <int,int>
#define tp tuple <int,int,int,bool>
#define c1(x) cin >> x
#define c2(x,y) cin >> x >> y
#define c3(x,y,z) cin >> x >> y >> z
#define c4(x,y,z,f) cin>> x >> y >> z >> f
#define mp(a,b) make_pair(a,b)
//typedef long long ll;
int power(int a,int b){
int result=1;
while (b>0){
if (b%2==1) result *= a;
a = a*a;
b /= 2;
}
return result;
} // power(2,3) = 8;
using namespace std;
int dp[200000];
struct func{
int m,c;
int operator () (int x) const{
return m*x + c;
}
func (int mm,int cc){
m=mm,c=cc;
}
};
struct node{ // how to delay
int s,e;
func f={0,1000000009};
node *l,*r;
node(int ss,int ee){
s = ss, e =ee;
int m = (s+e)/2;
if (s==e){
l=r=NULL;
}else{
l = new node(s,m);
r = new node(m+1,e);
}
}
int query(int x){
if (s==e) return f(x);
int m=(s+e)/2;
int ans = f(x);
if (x>m) ans = min(ans,r->query(x));
else if (x<=m) ans = min(ans,l->query(x));
return ans;
}
void update(func n){
int m = (s+e)/2;
bool mid = n(m) < f(m);
bool start = n(s) < f(s);
if (mid){
swap(n,f);
}
if (s==e) return;
if (!mid==start){
l->update(n);
}else{
r->update(n);
}
}
} *root;
bool yea[100005];
int parent[100005];
string ans="";
int n,k;
void findp(int x){
if (parent[x]==x){
if (yea[x]){
ans += to_string(k);
}else{
ans += "0";
}
return;
}
findp(parent[x]);
if (yea[x]){
ans += to_string(k);
}else{
ans += "0";
}
}
int LOG=19;
int spt[500005][20];
int ps[500005],ps1[500005];
int query(int l,int r){
int length = r-l+1;
int le = log2(length); //2
return max(spt[l][le],spt[r-(1<<(le))+1][le]);
}
struct fraction{
int a,b,car1,car2; // a = (x2-x1), b = (v2-v1)
bool operator > (const fraction &f) const {
return (a)*(f.b) > (f.a)*(b);
}
};
multiset<fraction,greater<fraction>> st;
pair<int,ppi> arr[250005];
int pos[250005];
void solve(){
int n;cin>>n;
unordered_map<int,bool> mp;
for (int i=0;i<n;++i){
int a;cin>>a;
mp[a+i] = true;
}
cout << mp.size();
}
int32_t main(){
ios_base::sync_with_stdio(0);cin.tie(0);
solve();
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Incorrect |
1 ms |
332 KB |
Output isn't correct |
2 |
Incorrect |
1 ms |
336 KB |
Output isn't correct |
3 |
Incorrect |
1 ms |
476 KB |
Output isn't correct |
4 |
Incorrect |
1 ms |
460 KB |
Output isn't correct |
5 |
Incorrect |
176 ms |
25072 KB |
Output isn't correct |
6 |
Incorrect |
176 ms |
26936 KB |
Output isn't correct |
7 |
Incorrect |
137 ms |
23216 KB |
Output isn't correct |
8 |
Incorrect |
137 ms |
22956 KB |
Output isn't correct |
9 |
Incorrect |
187 ms |
24152 KB |
Output isn't correct |
10 |
Incorrect |
155 ms |
24720 KB |
Output isn't correct |