답안 #15811

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
15811	2015-07-29T12:03:03 Z	comet	빨간 직사각형 (kriii3_QQ)	C++	20 / 20	237 ms	99400 KB

qq

#include<iostream>
using namespace std;
typedef long long ll;
ll n,m,col[3333][3333],st[3333],INDEX[3333];
char a[3333][3333];
int main(){
	ios::sync_with_stdio(0);
	cin>>n>>m;
	for(int i=1;i<=n;i++)cin>>&a[i][1];
	for(int j=1;j<=m;j++)
		for(int i=1;i<=n;i++)
			if(a[i][j]=='R')col[i][j]=col[i-1][j]+(a[i][j]=='R');
	ll ans=0;
	for(int i=1;i<=n;i++){
		int sz=0,cnt;
		st[sz]=0;
		INDEX[sz++]=0;
		for(int j=1;j<=m+1;j++){
			cnt=0;
			while(sz>1&&st[sz-1]>=col[i][j]){
				ans+=(j-INDEX[sz-2]-1ll)*st[sz-1];
				if(cnt){
					ans-=(j-INDEX[sz-2]-1ll)*st[sz-1];
					ans+=(INDEX[sz-1]-INDEX[sz-2])*st[sz-1]*(j-INDEX[sz-1]);
				}
				sz--;
				cnt++;
			}
			st[sz]=col[i][j];
			INDEX[sz++]=j;
		}
	}
	cout<<ans;
}

Subtask #1

10.0 / 10.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	99400 KB	Output is correct
2	Correct	0 ms	99400 KB	Output is correct
3	Correct	0 ms	99400 KB	Output is correct
4	Correct	0 ms	99400 KB	Output is correct
5	Correct	0 ms	99400 KB	Output is correct
6	Correct	0 ms	99400 KB	Output is correct
7	Correct	0 ms	99400 KB	Output is correct
8	Correct	0 ms	99400 KB	Output is correct
9	Correct	0 ms	99400 KB	Output is correct
10	Correct	0 ms	99400 KB	Output is correct
11	Correct	0 ms	99400 KB	Output is correct
12	Correct	0 ms	99400 KB	Output is correct
13	Correct	0 ms	99400 KB	Output is correct
14	Correct	0 ms	99400 KB	Output is correct
15	Correct	0 ms	99400 KB	Output is correct
16	Correct	0 ms	99400 KB	Output is correct
17	Correct	0 ms	99400 KB	Output is correct
18	Correct	0 ms	99400 KB	Output is correct
19	Correct	0 ms	99400 KB	Output is correct
20	Correct	0 ms	99400 KB	Output is correct
21	Correct	0 ms	99400 KB	Output is correct
22	Correct	4 ms	99400 KB	Output is correct
23	Correct	4 ms	99400 KB	Output is correct
24	Correct	0 ms	99400 KB	Output is correct
25	Correct	4 ms	99400 KB	Output is correct

Subtask #2

10.0 / 10.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	99400 KB	Output is correct
2	Correct	3 ms	99400 KB	Output is correct
3	Correct	11 ms	99400 KB	Output is correct
4	Correct	13 ms	99400 KB	Output is correct
5	Correct	12 ms	99400 KB	Output is correct
6	Correct	12 ms	99400 KB	Output is correct
7	Correct	9 ms	99400 KB	Output is correct
8	Correct	5 ms	99400 KB	Output is correct
9	Correct	17 ms	99400 KB	Output is correct
10	Correct	12 ms	99400 KB	Output is correct
11	Correct	16 ms	99400 KB	Output is correct
12	Correct	0 ms	99400 KB	Output is correct
13	Correct	16 ms	99400 KB	Output is correct
14	Correct	0 ms	99400 KB	Output is correct
15	Correct	5 ms	99400 KB	Output is correct
16	Correct	0 ms	99400 KB	Output is correct
17	Correct	0 ms	99400 KB	Output is correct
18	Correct	5 ms	99400 KB	Output is correct
19	Correct	6 ms	99400 KB	Output is correct
20	Correct	0 ms	99400 KB	Output is correct
21	Correct	4 ms	99400 KB	Output is correct
22	Correct	0 ms	99400 KB	Output is correct
23	Correct	12 ms	99400 KB	Output is correct
24	Correct	9 ms	99400 KB	Output is correct
25	Correct	7 ms	99400 KB	Output is correct
26	Correct	3 ms	99400 KB	Output is correct
27	Correct	7 ms	99400 KB	Output is correct
28	Correct	6 ms	99400 KB	Output is correct
29	Correct	8 ms	99400 KB	Output is correct
30	Correct	6 ms	99400 KB	Output is correct
31	Correct	178 ms	99400 KB	Output is correct
32	Correct	143 ms	99400 KB	Output is correct
33	Correct	140 ms	99400 KB	Output is correct
34	Correct	151 ms	99400 KB	Output is correct
35	Correct	167 ms	99400 KB	Output is correct
36	Correct	184 ms	99400 KB	Output is correct
37	Correct	201 ms	99400 KB	Output is correct
38	Correct	237 ms	99400 KB	Output is correct
39	Correct	231 ms	99400 KB	Output is correct
40	Correct	161 ms	99400 KB	Output is correct