Submission #88887
Source Code Expand
#include<iostream>
#include<algorithm>
#include<fstream>
#include<cstring>
#include<stack>
#include<vector>
using namespace std;
#define f first
#define s second
#define mp make_pair
#define T 1100000
int di[1100005],nkeb[1100005],nkek[1100005];
int n;
vector < int > v[2200005];
vector < pair < int , int > > qq,ww;
void oku(){
int i;
scanf("%d",&n);
for(i=1;i<=n;i++)
scanf("%d",&di[i]);
}
stack < pair < int , int > > st;
void coz(){
int i,j,k;
for(i=1;i<=n;i++){
while(!st.empty() && st.top().f>di[i]){
nkek[st.top().s]=i-1;
st.pop();
}
st.push(mp(di[i],i));
}
while(!st.empty()){
nkek[st.top().s]=n;
st.pop();
}
for(i=n;i>=1;i--){
while(!st.empty() && st.top().f<di[i]){
nkeb[st.top().s]=i+1;
st.pop();
}
st.push(mp(di[i],i));
}
while(!st.empty()){
nkeb[st.top().s]=1;
st.pop();
}
for(i=1;i<=n;i++)
v[di[i]-i+T].push_back(i);
int a,b;
for(k=0;k<=2200000;k++)
for(i=0;i<v[k].size();i++)
for(j=i+1;j<v[k].size();j++){
a=v[k][i];
b=v[k][j];
if(nkeb[b]<=a && nkek[a]>=b)
qq.push_back(mp(a,b));
}
sort(qq.begin(),qq.end());
int mn=1000000000;
for(i=qq.size()-1;i>=0;i--){
if(mn>qq[i].s)
ww.push_back(qq[i]);
mn=min(mn,qq[i].s);
}
sort(ww.begin(),ww.end());
cout<<ww.size()<<endl;
for(i=0;i<ww.size();i++)
cout<<ww[i].f<<" "<<ww[i].s<<endl;
}
int main(){
oku();
coz();
return 0;
}
Submission Info
Submission Time
2013-07-07 15:14:38+0900
Task
15 - Empodia
User
halilozanakgul
Language
C++ (GCC 4.4.7)
Score
100
Code Size
1447 Byte
Status
AC
Exec Time
789 ms
Memory
75044 KB
Compile Error
./Main.cpp: In function ‘void oku()’:
./Main.cpp:18: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result
./Main.cpp:20: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result
Judge Result
Set Name
Set01
Set02
Set03
Set04
Set05
Set06
Set07
Set08
Set09
Set10
Set11
Set12
Set13
Set14
Set15
Set16
Set17
Set18
Set19
Set20
Score / Max Score
5 / 5
5 / 5
5 / 5
5 / 5
5 / 5
5 / 5
5 / 5
5 / 5
5 / 5
5 / 5
5 / 5
5 / 5
5 / 5
5 / 5
5 / 5
5 / 5
5 / 5
5 / 5
5 / 5
5 / 5
Status
Set Name
Test Cases
Set01
01
Set02
02
Set03
03
Set04
04
Set05
05
Set06
06
Set07
07
Set08
08
Set09
09
Set10
10
Set11
11
Set12
12
Set13
13
Set14
14
Set15
15
Set16
16
Set17
17
Set18
18
Set19
19
Set20
20
Case Name
Status
Exec Time
Memory
01
AC
139 ms
52688 KB
02
AC
155 ms
54736 KB
03
AC
147 ms
54736 KB
04
AC
152 ms
52676 KB
05
AC
135 ms
52592 KB
06
AC
132 ms
52664 KB
07
AC
130 ms
52580 KB
08
AC
165 ms
52684 KB
09
AC
137 ms
52540 KB
10
AC
129 ms
52548 KB
11
AC
162 ms
54752 KB
12
AC
204 ms
53816 KB
13
AC
161 ms
54080 KB
14
AC
164 ms
54080 KB
15
AC
163 ms
53456 KB
16
AC
158 ms
53564 KB
17
AC
160 ms
53692 KB
18
AC
516 ms
53248 KB
19
AC
679 ms
53560 KB
20
AC
789 ms
75044 KB