#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],pfx[N],sfx[N];
mi ans;
bool chk(){
debug(vector<int>(a+1,a+n+1));
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;
}
pfx[l-1]=sfx[r+1]=(int)1e9+1;
for(int i=l;i<=r;i++){
pfx[i]=pfx[i-1];
if(a[i]!=a[q]) pfx[i]=min(pfx[i],a[i]);
}
for(int i=r;i>=l;i--){
sfx[i]=sfx[i+1];
if(a[i]!=a[q]) sfx[i]=min(sfx[i],a[i]);
}
vector<int> v;
for(int i=l;i<=r;i++) if(a[i]==a[q]) v.emplace_back(i);
ans+=1ll*a[q]*v.size()%mod;
debug((int)ans);
if(v.size()==1){
ans+=pfx[v[0]]+sfx[v[0]];
} else{
// p0 s0 sn
// p0 pn sn
int i=v[0],j=v.back();
if(sfx[i]<pfx[j]){
ans+=pfx[i]+sfx[i]+sfx[j];
} else{
ans+=pfx[i]+pfx[j]+sfx[j];
}
debug((int)ans,pfx[i],sfx[i],pfx[j],sfx[j]);
int sz=v.size();
ans+=1ll*(a[i]+1)*(1+2*(sz-2))%mod;
}
for(int i: v) a[i]++;
debug((int)ans);
}
cout<<ans;
return 0;
}
Compilation message
Main.cpp: In function 'bool chk()':
Main.cpp:14:20: warning: statement has no effect [-Wunused-value]
14 | #define debug(...) 42
| ^~
Main.cpp:85:2: note: in expansion of macro 'debug'
85 | debug(vector<int>(a+1,a+n+1));
| ^~~~~
Main.cpp: In function 'int main()':
Main.cpp:14:20: warning: statement has no effect [-Wunused-value]
14 | #define debug(...) 42
| ^~
Main.cpp:117:3: note: in expansion of macro 'debug'
117 | debug((int)ans);
| ^~~~~
Main.cpp:14:20: warning: statement has no effect [-Wunused-value]
14 | #define debug(...) 42
| ^~
Main.cpp:129:4: note: in expansion of macro 'debug'
129 | debug((int)ans,pfx[i],sfx[i],pfx[j],sfx[j]);
| ^~~~~
Main.cpp:14:20: warning: statement has no effect [-Wunused-value]
14 | #define debug(...) 42
| ^~
Main.cpp:134:3: note: in expansion of macro 'debug'
134 | debug((int)ans);
| ^~~~~
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
212 KB |
Output is correct |
2 |
Correct |
0 ms |
340 KB |
Output is correct |
3 |
Correct |
0 ms |
340 KB |
Output is correct |
4 |
Correct |
5 ms |
340 KB |
Output is correct |
5 |
Correct |
0 ms |
340 KB |
Output is correct |
6 |
Correct |
1 ms |
340 KB |
Output is correct |
7 |
Correct |
1 ms |
352 KB |
Output is correct |
8 |
Correct |
4 ms |
340 KB |
Output is correct |
9 |
Correct |
1 ms |
340 KB |
Output is correct |
10 |
Correct |
1 ms |
340 KB |
Output is correct |
11 |
Correct |
4 ms |
344 KB |
Output is correct |
12 |
Correct |
4 ms |
340 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
212 KB |
Output is correct |
2 |
Correct |
0 ms |
340 KB |
Output is correct |
3 |
Correct |
0 ms |
340 KB |
Output is correct |
4 |
Correct |
5 ms |
340 KB |
Output is correct |
5 |
Correct |
0 ms |
340 KB |
Output is correct |
6 |
Correct |
1 ms |
340 KB |
Output is correct |
7 |
Correct |
1 ms |
352 KB |
Output is correct |
8 |
Correct |
4 ms |
340 KB |
Output is correct |
9 |
Correct |
1 ms |
340 KB |
Output is correct |
10 |
Correct |
1 ms |
340 KB |
Output is correct |
11 |
Correct |
4 ms |
344 KB |
Output is correct |
12 |
Correct |
4 ms |
340 KB |
Output is correct |
13 |
Correct |
6 ms |
340 KB |
Output is correct |
14 |
Correct |
1 ms |
340 KB |
Output is correct |
15 |
Correct |
0 ms |
340 KB |
Output is correct |
16 |
Correct |
7 ms |
440 KB |
Output is correct |
17 |
Correct |
5 ms |
440 KB |
Output is correct |
18 |
Correct |
5 ms |
340 KB |
Output is correct |
19 |
Correct |
5 ms |
416 KB |
Output is correct |
20 |
Correct |
4 ms |
340 KB |
Output is correct |
21 |
Correct |
5 ms |
340 KB |
Output is correct |
22 |
Correct |
4 ms |
340 KB |
Output is correct |
23 |
Correct |
4 ms |
452 KB |
Output is correct |
24 |
Correct |
4 ms |
340 KB |
Output is correct |
25 |
Correct |
4 ms |
340 KB |
Output is correct |
26 |
Correct |
6 ms |
340 KB |
Output is correct |
27 |
Correct |
9 ms |
340 KB |
Output is correct |
28 |
Correct |
4 ms |
340 KB |
Output is correct |
29 |
Correct |
0 ms |
340 KB |
Output is correct |
30 |
Correct |
0 ms |
212 KB |
Output is correct |
31 |
Correct |
1 ms |
212 KB |
Output is correct |
32 |
Correct |
0 ms |
212 KB |
Output is correct |
33 |
Correct |
0 ms |
212 KB |
Output is correct |
34 |
Correct |
0 ms |
340 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
212 KB |
Output is correct |
2 |
Correct |
0 ms |
340 KB |
Output is correct |
3 |
Correct |
0 ms |
340 KB |
Output is correct |
4 |
Correct |
5 ms |
340 KB |
Output is correct |
5 |
Correct |
0 ms |
340 KB |
Output is correct |
6 |
Correct |
1 ms |
340 KB |
Output is correct |
7 |
Correct |
1 ms |
352 KB |
Output is correct |
8 |
Correct |
4 ms |
340 KB |
Output is correct |
9 |
Correct |
1 ms |
340 KB |
Output is correct |
10 |
Correct |
1 ms |
340 KB |
Output is correct |
11 |
Correct |
4 ms |
344 KB |
Output is correct |
12 |
Correct |
4 ms |
340 KB |
Output is correct |
13 |
Correct |
6 ms |
340 KB |
Output is correct |
14 |
Correct |
1 ms |
340 KB |
Output is correct |
15 |
Correct |
0 ms |
340 KB |
Output is correct |
16 |
Correct |
7 ms |
440 KB |
Output is correct |
17 |
Correct |
5 ms |
440 KB |
Output is correct |
18 |
Correct |
5 ms |
340 KB |
Output is correct |
19 |
Correct |
5 ms |
416 KB |
Output is correct |
20 |
Correct |
4 ms |
340 KB |
Output is correct |
21 |
Correct |
5 ms |
340 KB |
Output is correct |
22 |
Correct |
4 ms |
340 KB |
Output is correct |
23 |
Correct |
4 ms |
452 KB |
Output is correct |
24 |
Correct |
4 ms |
340 KB |
Output is correct |
25 |
Correct |
4 ms |
340 KB |
Output is correct |
26 |
Correct |
6 ms |
340 KB |
Output is correct |
27 |
Correct |
9 ms |
340 KB |
Output is correct |
28 |
Correct |
4 ms |
340 KB |
Output is correct |
29 |
Correct |
0 ms |
340 KB |
Output is correct |
30 |
Correct |
0 ms |
212 KB |
Output is correct |
31 |
Correct |
1 ms |
212 KB |
Output is correct |
32 |
Correct |
0 ms |
212 KB |
Output is correct |
33 |
Correct |
0 ms |
212 KB |
Output is correct |
34 |
Correct |
0 ms |
340 KB |
Output is correct |
35 |
Execution timed out |
5056 ms |
384 KB |
Time limit exceeded |
36 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
212 KB |
Output is correct |
2 |
Correct |
0 ms |
340 KB |
Output is correct |
3 |
Correct |
0 ms |
340 KB |
Output is correct |
4 |
Correct |
5 ms |
340 KB |
Output is correct |
5 |
Correct |
0 ms |
340 KB |
Output is correct |
6 |
Correct |
1 ms |
340 KB |
Output is correct |
7 |
Correct |
1 ms |
352 KB |
Output is correct |
8 |
Correct |
4 ms |
340 KB |
Output is correct |
9 |
Correct |
1 ms |
340 KB |
Output is correct |
10 |
Correct |
1 ms |
340 KB |
Output is correct |
11 |
Correct |
4 ms |
344 KB |
Output is correct |
12 |
Correct |
4 ms |
340 KB |
Output is correct |
13 |
Correct |
6 ms |
340 KB |
Output is correct |
14 |
Correct |
1 ms |
340 KB |
Output is correct |
15 |
Correct |
0 ms |
340 KB |
Output is correct |
16 |
Correct |
7 ms |
440 KB |
Output is correct |
17 |
Correct |
5 ms |
440 KB |
Output is correct |
18 |
Correct |
5 ms |
340 KB |
Output is correct |
19 |
Correct |
5 ms |
416 KB |
Output is correct |
20 |
Correct |
4 ms |
340 KB |
Output is correct |
21 |
Correct |
5 ms |
340 KB |
Output is correct |
22 |
Correct |
4 ms |
340 KB |
Output is correct |
23 |
Correct |
4 ms |
452 KB |
Output is correct |
24 |
Correct |
4 ms |
340 KB |
Output is correct |
25 |
Correct |
4 ms |
340 KB |
Output is correct |
26 |
Correct |
6 ms |
340 KB |
Output is correct |
27 |
Correct |
9 ms |
340 KB |
Output is correct |
28 |
Correct |
4 ms |
340 KB |
Output is correct |
29 |
Correct |
0 ms |
340 KB |
Output is correct |
30 |
Correct |
0 ms |
212 KB |
Output is correct |
31 |
Correct |
1 ms |
212 KB |
Output is correct |
32 |
Correct |
0 ms |
212 KB |
Output is correct |
33 |
Correct |
0 ms |
212 KB |
Output is correct |
34 |
Correct |
0 ms |
340 KB |
Output is correct |
35 |
Execution timed out |
5056 ms |
384 KB |
Time limit exceeded |
36 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
212 KB |
Output is correct |
2 |
Correct |
0 ms |
340 KB |
Output is correct |
3 |
Correct |
0 ms |
340 KB |
Output is correct |
4 |
Correct |
5 ms |
340 KB |
Output is correct |
5 |
Correct |
0 ms |
340 KB |
Output is correct |
6 |
Correct |
1 ms |
340 KB |
Output is correct |
7 |
Correct |
1 ms |
352 KB |
Output is correct |
8 |
Correct |
4 ms |
340 KB |
Output is correct |
9 |
Correct |
1 ms |
340 KB |
Output is correct |
10 |
Correct |
1 ms |
340 KB |
Output is correct |
11 |
Correct |
4 ms |
344 KB |
Output is correct |
12 |
Correct |
4 ms |
340 KB |
Output is correct |
13 |
Correct |
6 ms |
340 KB |
Output is correct |
14 |
Correct |
1 ms |
340 KB |
Output is correct |
15 |
Correct |
0 ms |
340 KB |
Output is correct |
16 |
Correct |
7 ms |
440 KB |
Output is correct |
17 |
Correct |
5 ms |
440 KB |
Output is correct |
18 |
Correct |
5 ms |
340 KB |
Output is correct |
19 |
Correct |
5 ms |
416 KB |
Output is correct |
20 |
Correct |
4 ms |
340 KB |
Output is correct |
21 |
Correct |
5 ms |
340 KB |
Output is correct |
22 |
Correct |
4 ms |
340 KB |
Output is correct |
23 |
Correct |
4 ms |
452 KB |
Output is correct |
24 |
Correct |
4 ms |
340 KB |
Output is correct |
25 |
Correct |
4 ms |
340 KB |
Output is correct |
26 |
Correct |
6 ms |
340 KB |
Output is correct |
27 |
Correct |
9 ms |
340 KB |
Output is correct |
28 |
Correct |
4 ms |
340 KB |
Output is correct |
29 |
Correct |
0 ms |
340 KB |
Output is correct |
30 |
Correct |
0 ms |
212 KB |
Output is correct |
31 |
Correct |
1 ms |
212 KB |
Output is correct |
32 |
Correct |
0 ms |
212 KB |
Output is correct |
33 |
Correct |
0 ms |
212 KB |
Output is correct |
34 |
Correct |
0 ms |
340 KB |
Output is correct |
35 |
Correct |
1128 ms |
19972 KB |
Output is correct |
36 |
Correct |
1128 ms |
19968 KB |
Output is correct |
37 |
Correct |
1271 ms |
19992 KB |
Output is correct |
38 |
Correct |
1224 ms |
19936 KB |
Output is correct |
39 |
Correct |
1088 ms |
20008 KB |
Output is correct |
40 |
Correct |
1 ms |
340 KB |
Output is correct |
41 |
Correct |
1 ms |
340 KB |
Output is correct |
42 |
Correct |
919 ms |
20120 KB |
Output is correct |
43 |
Correct |
892 ms |
20132 KB |
Output is correct |
44 |
Correct |
921 ms |
20152 KB |
Output is correct |
45 |
Correct |
867 ms |
19940 KB |
Output is correct |
46 |
Correct |
861 ms |
20304 KB |
Output is correct |
47 |
Correct |
882 ms |
19968 KB |
Output is correct |
48 |
Correct |
1155 ms |
19992 KB |
Output is correct |
49 |
Correct |
1798 ms |
19980 KB |
Output is correct |
50 |
Correct |
1586 ms |
20024 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
212 KB |
Output is correct |
2 |
Correct |
0 ms |
340 KB |
Output is correct |
3 |
Correct |
0 ms |
340 KB |
Output is correct |
4 |
Correct |
5 ms |
340 KB |
Output is correct |
5 |
Correct |
0 ms |
340 KB |
Output is correct |
6 |
Correct |
1 ms |
340 KB |
Output is correct |
7 |
Correct |
1 ms |
352 KB |
Output is correct |
8 |
Correct |
4 ms |
340 KB |
Output is correct |
9 |
Correct |
1 ms |
340 KB |
Output is correct |
10 |
Correct |
1 ms |
340 KB |
Output is correct |
11 |
Correct |
4 ms |
344 KB |
Output is correct |
12 |
Correct |
4 ms |
340 KB |
Output is correct |
13 |
Correct |
6 ms |
340 KB |
Output is correct |
14 |
Correct |
1 ms |
340 KB |
Output is correct |
15 |
Correct |
0 ms |
340 KB |
Output is correct |
16 |
Correct |
7 ms |
440 KB |
Output is correct |
17 |
Correct |
5 ms |
440 KB |
Output is correct |
18 |
Correct |
5 ms |
340 KB |
Output is correct |
19 |
Correct |
5 ms |
416 KB |
Output is correct |
20 |
Correct |
4 ms |
340 KB |
Output is correct |
21 |
Correct |
5 ms |
340 KB |
Output is correct |
22 |
Correct |
4 ms |
340 KB |
Output is correct |
23 |
Correct |
4 ms |
452 KB |
Output is correct |
24 |
Correct |
4 ms |
340 KB |
Output is correct |
25 |
Correct |
4 ms |
340 KB |
Output is correct |
26 |
Correct |
6 ms |
340 KB |
Output is correct |
27 |
Correct |
9 ms |
340 KB |
Output is correct |
28 |
Correct |
4 ms |
340 KB |
Output is correct |
29 |
Correct |
0 ms |
340 KB |
Output is correct |
30 |
Correct |
0 ms |
212 KB |
Output is correct |
31 |
Correct |
1 ms |
212 KB |
Output is correct |
32 |
Correct |
0 ms |
212 KB |
Output is correct |
33 |
Correct |
0 ms |
212 KB |
Output is correct |
34 |
Correct |
0 ms |
340 KB |
Output is correct |
35 |
Execution timed out |
5056 ms |
384 KB |
Time limit exceeded |
36 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
212 KB |
Output is correct |
2 |
Correct |
0 ms |
340 KB |
Output is correct |
3 |
Correct |
0 ms |
340 KB |
Output is correct |
4 |
Correct |
5 ms |
340 KB |
Output is correct |
5 |
Correct |
0 ms |
340 KB |
Output is correct |
6 |
Correct |
1 ms |
340 KB |
Output is correct |
7 |
Correct |
1 ms |
352 KB |
Output is correct |
8 |
Correct |
4 ms |
340 KB |
Output is correct |
9 |
Correct |
1 ms |
340 KB |
Output is correct |
10 |
Correct |
1 ms |
340 KB |
Output is correct |
11 |
Correct |
4 ms |
344 KB |
Output is correct |
12 |
Correct |
4 ms |
340 KB |
Output is correct |
13 |
Correct |
6 ms |
340 KB |
Output is correct |
14 |
Correct |
1 ms |
340 KB |
Output is correct |
15 |
Correct |
0 ms |
340 KB |
Output is correct |
16 |
Correct |
7 ms |
440 KB |
Output is correct |
17 |
Correct |
5 ms |
440 KB |
Output is correct |
18 |
Correct |
5 ms |
340 KB |
Output is correct |
19 |
Correct |
5 ms |
416 KB |
Output is correct |
20 |
Correct |
4 ms |
340 KB |
Output is correct |
21 |
Correct |
5 ms |
340 KB |
Output is correct |
22 |
Correct |
4 ms |
340 KB |
Output is correct |
23 |
Correct |
4 ms |
452 KB |
Output is correct |
24 |
Correct |
4 ms |
340 KB |
Output is correct |
25 |
Correct |
4 ms |
340 KB |
Output is correct |
26 |
Correct |
6 ms |
340 KB |
Output is correct |
27 |
Correct |
9 ms |
340 KB |
Output is correct |
28 |
Correct |
4 ms |
340 KB |
Output is correct |
29 |
Correct |
0 ms |
340 KB |
Output is correct |
30 |
Correct |
0 ms |
212 KB |
Output is correct |
31 |
Correct |
1 ms |
212 KB |
Output is correct |
32 |
Correct |
0 ms |
212 KB |
Output is correct |
33 |
Correct |
0 ms |
212 KB |
Output is correct |
34 |
Correct |
0 ms |
340 KB |
Output is correct |
35 |
Execution timed out |
5056 ms |
384 KB |
Time limit exceeded |
36 |
Halted |
0 ms |
0 KB |
- |