#pragma GCC optimize("O3")
//#pragma GCC optimize("Ofast")
#pragma GCC optimize("unroll-loops")
#pragma GCC target("sse,sse2,sse3,ssse3,sse4,sse4.1,sse4.2,popcnt,abm,mmx,avx,avx2,fma")
#include <bits/stdc++.h>
using namespace std;
//#include <atcoder/all>
//using namespace atcoder;
//#include <bits/extc++.h>
//using namespace __gnu_pbds;
#ifdef LOCAL
#include "debug.h"
#else
#define debug(...) 42
#endif
using ll=long long;
//uniform_int_distribution<> gen(1,100);
template <int MOD_> struct modnum{
private:
int v;
public:
static const int MOD = MOD_;
modnum() : v(0) {}
modnum(ll v_) : v(int(v_ % MOD)) { if (v < 0) v += MOD; }
explicit operator int () const { return v; }
friend bool operator == (const modnum& a, const modnum& b) { return a.v == b.v; }
friend bool operator != (const modnum& a, const modnum& b) { return a.v != b.v; }
friend bool operator < (const modnum& a, const modnum& b) { return a.v < b.v; }
friend bool operator <= (const modnum& a, const modnum& b) { return a.v <= b.v; }
friend bool operator > (const modnum& a, const modnum& b) { return a.v > b.v; }
friend bool operator >= (const modnum& a, const modnum& b) { return a.v >= b.v; }
modnum& operator += (const modnum& o) {
v += o.v;
if (v >= MOD) v -= MOD;
return *this;
}
modnum& operator -= (const modnum& o) {
v -= o.v;
if (v < 0) v += MOD;
return *this;
}
modnum& operator *= (const modnum& o) {
v = int(ll(v) * ll(o.v) % MOD);
return *this;
}
friend modnum pow(modnum a, ll p) {
modnum ans = 1;
for (; p; p /= 2, a *= a) if (p&1) ans *= a;
return ans;
}
modnum operator ~ () const {
modnum res;
res.v = pow((modnum)v, MOD - 2).v;
return res;
}
modnum& operator /= (const modnum& o) {
return *this *= (~o);
}
modnum operator-() const { return modnum(-v); }
modnum& operator++() { return *this += 1; }
modnum operator++(int){ modnum tmp=*this; ++*this; return tmp; }
modnum& operator--() { return *this -= 1; }
modnum operator--(int){ modnum tmp=*this; --*this; return tmp; }
friend modnum operator + (const modnum& a, const modnum& b) { return modnum(a) += b; }
friend modnum operator - (const modnum& a, const modnum& b) { return modnum(a) -= b; }
friend modnum operator * (const modnum& a, const modnum& b) { return modnum(a) *= b; }
friend modnum operator / (const modnum& a, const modnum& b) { return modnum(a) /= b; }
friend ostream& operator<<(std::ostream& os, const modnum& o)
{
os << o.v;
return os;
}
friend istream& operator>>(std::istream& is, modnum& o)
{
is >> o.v;
return is;
}
};
const ll mod=1000003;
const int N=1e6+5;
using mi=modnum<mod>;
int n,l,r,p=1,a[N];
mi ans;
bool chk(){
for(int i=l;i<p;i++) if(a[i]>a[i+1]) return false;
for(int i=p;i<r;i++) if(a[i]<a[i+1]) return false;
return true;
}
int main(){
ios::sync_with_stdio(false); cin.tie(0);
cin>>n;
for(int i=1;i<=n;i++) cin>>a[i];
for(int i=2;i<=n;i++) if(a[p]<a[i]) p=i;
l=1; r=n;
while(!chk()){
int q=l;
for(int i=l+1;i<=r;i++) if(a[i]<a[q]) q=i;
if(a[q]==a[l]){
l++; continue;
}
if(a[q]==a[r]){
r--; continue;
}
int L=l,R=r;
for(int i=l+1;i<q;i++) if(a[i]<a[L]&&a[q]<a[L]) L=i;
for(int i=q+1;i<=r;i++) if(a[i]<a[R]&&a[q]<a[R]) R=i;
ans+=a[q]+a[L]+a[R];
a[q]++;
}
cout<<ans;
return 0;
}
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
0 ms |
212 KB |
Output is correct |
| 2 |
Correct |
0 ms |
212 KB |
Output is correct |
| 3 |
Incorrect |
0 ms |
212 KB |
Output isn't correct |
| 4 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
0 ms |
212 KB |
Output is correct |
| 2 |
Correct |
0 ms |
212 KB |
Output is correct |
| 3 |
Incorrect |
0 ms |
212 KB |
Output isn't correct |
| 4 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
0 ms |
212 KB |
Output is correct |
| 2 |
Correct |
0 ms |
212 KB |
Output is correct |
| 3 |
Incorrect |
0 ms |
212 KB |
Output isn't correct |
| 4 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
0 ms |
212 KB |
Output is correct |
| 2 |
Correct |
0 ms |
212 KB |
Output is correct |
| 3 |
Incorrect |
0 ms |
212 KB |
Output isn't correct |
| 4 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
0 ms |
212 KB |
Output is correct |
| 2 |
Correct |
0 ms |
212 KB |
Output is correct |
| 3 |
Incorrect |
0 ms |
212 KB |
Output isn't correct |
| 4 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
0 ms |
212 KB |
Output is correct |
| 2 |
Correct |
0 ms |
212 KB |
Output is correct |
| 3 |
Incorrect |
0 ms |
212 KB |
Output isn't correct |
| 4 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
0 ms |
212 KB |
Output is correct |
| 2 |
Correct |
0 ms |
212 KB |
Output is correct |
| 3 |
Incorrect |
0 ms |
212 KB |
Output isn't correct |
| 4 |
Halted |
0 ms |
0 KB |
- |
