Submission #1354637
Source Code Expand
#include <bits/stdc++.h>
#define pb push_back
#define left lleft
#define right rright
#define lld long long
using namespace std;
int N,nn; lld ans;
int a[200002]; lld where[200002];
lld left[200002],right[200002];
int seg[600002];
int tmp;
void get(int node,int l,int r,int s,int e){
if(r < s || e < l || s > e || seg[node] == 0) return;
if(s <= l && r <= e){
tmp = node;
return;
}
int mid = (l+r)/2;
get(node*2,1,mid,s,e);
get(node*2+1,mid+1,r,s,e);
}
void get2(int node,int l,int r,int s,int e){
if(r < s || e < l || s > e || seg[node] == 0) return;
if(s <= l && r <= e){
tmp = node;
return;
}
int mid = (l+r)/2;
get2(node*2+1,mid+1,r,s,e);
get2(node*2,l,mid,s,e);
}
int main(){
scanf("%d",&N);
for(nn=1; nn<N; nn*=2);
for(int i=1; i<=N; i++){
scanf("%d",&a[i]);
where[a[i]] = i;
}
for(int i=1; i<=N; i++){
if(i == 1){
left[i] = 1; right[i] = N;
}else{
tmp = -1;
get(1,1,nn,1,where[i]-1);
while(tmp < nn && tmp != -1){
if(seg[tmp*2+1] != 0){
tmp = tmp*2+1;
}else tmp = tmp*2;
}
if(tmp == -1) left[i] = nn;
else left[i] = tmp+1;
tmp = -1;
get2(1,1,nn,where[i]+1,N);
while(tmp < nn && tmp != -1){
if(seg[tmp*2] != 0){
tmp = tmp*2;
}else tmp = tmp*2+1;
}
if(tmp == -1) right[i] = nn+N-1;
else right[i] = tmp-1;
left[i] -= (nn-1); right[i] -= (nn-1);
}
int x = nn+where[i]-1;
while(x){
seg[x]++;
x /= 2;
}
}
for(int i=1; i<=N; i++){
lld cnt = right[i]-left[i]+1;
ans += ((right[i]-where[i]+1)*(where[i]-left[i]+1)*(lld)i);
//printf("%lld %lld\n",left[i],right[i]);
}
printf("%lld\n",ans);
return 0;
}
Submission Info
Submission Time
2017-06-15 09:55:26+0900
Task
B - Minimum Sum
User
suhgyuho
Language
C++14 (GCC 5.4.1)
Score
0
Code Size
1711 Byte
Status
RE
Exec Time
187 ms
Memory
7552 KB
Compile Error
./Main.cpp: In function ‘int main()’:
./Main.cpp:38:16: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
scanf("%d",&N);
^
./Main.cpp:41:20: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
scanf("%d",&a[i]);
^
Judge Result
Set Name
Sample
All
Score / Max Score
0 / 0
0 / 400
Status
Set Name
Test Cases
Sample
example0, example1, example2
All
corner0, corner1, corner2, corner3, example0, example1, example2, maxrand0, maxrand1, maxrand2, rand0, rand1, rand2
Case Name
Status
Exec Time
Memory
corner0
AC
62 ms
7552 KB
corner1
WA
88 ms
7552 KB
corner2
AC
2 ms
4352 KB
corner3
WA
85 ms
7552 KB
example0
AC
2 ms
4352 KB
example1
AC
2 ms
4352 KB
example2
AC
2 ms
4352 KB
maxrand0
RE
187 ms
7552 KB
maxrand1
RE
187 ms
7552 KB
maxrand2
RE
185 ms
7552 KB
rand0
WA
2 ms
4352 KB
rand1
AC
2 ms
4352 KB
rand2
WA
2 ms
4352 KB