Submission #2825473


Source Code Expand

//https://cf17-exhibition-open.contest.atcoder.jp/tasks/cf17_exhibition_b
#include <cstdio>
#include <algorithm>
using namespace std;
#define N 200020
#define inf 0x7fffffff
#define ll long long
int n,mn[N<<2],add[N<<2],b[N],a[N];
ll ans=0;
inline void pushup(int x){mn[x]=min(mn[x<<1],mn[x<<1|1]);}
inline void pushdown(int x){
	mn[x<<1]+=add[x];mn[x<<1|1]+=add[x];
	add[x<<1]+=add[x];add[x<<1|1]+=add[x];
	add[x]=0;
}
void build(int v,int l,int r){
	if(l==r){mn[v]=b[l];return;}
	int mid=l+r>>1;
	build(v<<1,l,mid);build(v<<1|1,mid+1,r);
	pushup(v);
}
void ins(int v,int l,int r,int x,int y){
	if(x>y) return;
	if(x<=l && r<=y){
		add[v]++;mn[v]++;
		return;
	}int mid=l+r>>1;pushdown(v);
	if(x<=mid) ins(v<<1,l,mid,x,y);
	if(mid<y) ins(v<<1|1,mid+1,r,x,y);
	pushup(v);
} 
int query(int v,int l,int r,int x,int y){
	if(x<=l && r<=y) return mn[v];
	int mid=l+r>>1,s=inf;pushdown(v);
	if(x<=mid) s=min(s,query(v<<1,l,mid,x,y));
	if(mid<y) s=min(s,query(v<<1|1,mid+1,r,x,y));
	return s;
}
int main(){
	scanf("%d",&n);
	for(int i=1;i<=n;i++) scanf("%d",&a[i]),b[i]=a[i];
	sort(b+1,b+n+1);int nn=unique(b+1,b+n+1)-b-1;
	build(1,1,nn);
	for(int i=1;i<=n;i++){
		int p=lower_bound(b+1,b+nn+1,a[i])-b;
		ans+=query(1,1,nn,p,nn)-a[i];
		ins(1,1,nn,1,p-1);
	}printf("%lld\n",ans);
	return 0;
}

Submission Info

Submission Time
Task B - Increment and Swap
User sunshiness
Language C++14 (GCC 5.4.1)
Score 1500
Code Size 1334 Byte
Status AC
Exec Time 148 ms
Memory 6912 KB

Compile Error

./Main.cpp: In function ‘int main()’:
./Main.cpp:40:16: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d",&n);
                ^
./Main.cpp:41:51: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
  for(int i=1;i<=n;i++) scanf("%d",&a[i]),b[i]=a[i];
                                                   ^

Judge Result

Set Name Sample All
Score / Max Score 0 / 0 1500 / 1500
Status
AC × 2
AC × 66
Set Name Test Cases
Sample example0.txt, example1.txt
All 000.txt, 001.txt, 002.txt, 003.txt, 004.txt, 005.txt, 006.txt, 007.txt, 008.txt, 009.txt, 010.txt, 011.txt, 012.txt, 013.txt, 014.txt, 015.txt, 016.txt, 017.txt, 018.txt, 019.txt, 020.txt, 021.txt, 022.txt, 023.txt, 024.txt, 025.txt, 026.txt, 027.txt, 028.txt, 029.txt, 030.txt, 031.txt, 032.txt, 033.txt, 034.txt, 035.txt, 036.txt, 037.txt, 038.txt, 039.txt, 040.txt, 041.txt, 042.txt, 043.txt, 044.txt, 045.txt, 046.txt, 047.txt, 048.txt, 049.txt, 050.txt, 051.txt, 052.txt, 053.txt, 054.txt, 055.txt, 056.txt, 057.txt, 058.txt, 059.txt, 060.txt, 061.txt, 062.txt, 063.txt, example0.txt, example1.txt
Case Name Status Exec Time Memory
000.txt AC 130 ms 6272 KB
001.txt AC 132 ms 6272 KB
002.txt AC 131 ms 6272 KB
003.txt AC 132 ms 6272 KB
004.txt AC 133 ms 6272 KB
005.txt AC 135 ms 6272 KB
006.txt AC 136 ms 6272 KB
007.txt AC 138 ms 6272 KB
008.txt AC 137 ms 6272 KB
009.txt AC 139 ms 6272 KB
010.txt AC 138 ms 6272 KB
011.txt AC 141 ms 6912 KB
012.txt AC 139 ms 6912 KB
013.txt AC 140 ms 6912 KB
014.txt AC 141 ms 6912 KB
015.txt AC 141 ms 6912 KB
016.txt AC 141 ms 6912 KB
017.txt AC 143 ms 6912 KB
018.txt AC 142 ms 6912 KB
019.txt AC 144 ms 6912 KB
020.txt AC 142 ms 6912 KB
021.txt AC 12 ms 2432 KB
022.txt AC 123 ms 6272 KB
023.txt AC 59 ms 5504 KB
024.txt AC 22 ms 2816 KB
025.txt AC 79 ms 5632 KB
026.txt AC 15 ms 2560 KB
027.txt AC 99 ms 5888 KB
028.txt AC 50 ms 5376 KB
029.txt AC 49 ms 5376 KB
030.txt AC 49 ms 5376 KB
031.txt AC 101 ms 5888 KB
032.txt AC 64 ms 5504 KB
033.txt AC 66 ms 5504 KB
034.txt AC 110 ms 6016 KB
035.txt AC 19 ms 2688 KB
036.txt AC 126 ms 6784 KB
037.txt AC 95 ms 5888 KB
038.txt AC 24 ms 2816 KB
039.txt AC 72 ms 5632 KB
040.txt AC 67 ms 5504 KB
041.txt AC 125 ms 6784 KB
042.txt AC 101 ms 6912 KB
043.txt AC 99 ms 6912 KB
044.txt AC 144 ms 6912 KB
045.txt AC 1 ms 2176 KB
046.txt AC 33 ms 3712 KB
047.txt AC 148 ms 6912 KB
048.txt AC 27 ms 3712 KB
049.txt AC 31 ms 3712 KB
050.txt AC 43 ms 3712 KB
051.txt AC 64 ms 3712 KB
052.txt AC 89 ms 3840 KB
053.txt AC 113 ms 3968 KB
054.txt AC 139 ms 6272 KB
055.txt AC 25 ms 3712 KB
056.txt AC 29 ms 3712 KB
057.txt AC 41 ms 3712 KB
058.txt AC 59 ms 3840 KB
059.txt AC 87 ms 3840 KB
060.txt AC 109 ms 3968 KB
061.txt AC 135 ms 6272 KB
062.txt AC 94 ms 6272 KB
063.txt AC 93 ms 6272 KB
example0.txt AC 1 ms 2176 KB
example1.txt AC 1 ms 2176 KB