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Submission #73114

# Submission time Handle Problem Language Result Execution time Memory
73114 2018-08-27T16:42:27 Z aleksam Ancient Books (IOI17_books) C++14
50 / 100
 297 ms 25944 KB 
#include "books.h"

#include <bits/stdc++.h>
#define MAX_N 1000000
using namespace std;

struct cikl{
	int l, r;//Najlevlji i najdesnji
	long long sum;//suma p_i-i na ciklusu.
};

long long aps(int a){
	return a>0?a:-1*a;
}
vector<cikl> C;
int numcyc=0, numcom=0;//broj ciklova
int N;
long long ans=0;
bool mark[MAX_N];
//vector<int> p;
long long minimum_walk(vector<int> p, int s){
	//Ako je s=0 i n<1000
	N=p.size();
	while(N && p[N-1]==N-1){
		N--;//Ovaj deo mi ionako ne treba
	}
	int nula=0;
	while(nula<s && p[nula]==nula){
		nula++;
	}
	
	if(N==nula)return 0;
	for(int i=nula; i<N; ++i){
		if(!mark[i]){
			numcyc++;
			cikl A;
			A.l=A.r=i;
			A.sum=0;
			int cur=i;
			do{
				cur=p[cur];
				if(cur>A.r)A.r=cur;
				if(cur<A.l)A.l=cur;
				A.sum+=aps(p[cur]-cur);
				mark[cur]=1;
			}while(i!=cur);
			C.push_back(A);
			//Ovako formiran niz ciklova je sortiran prema levom kraju--koji je uvek i
		}
	}
	for(int i=0; i<numcyc; ++i){
	//	printf("C[%d]:%d %d %d;\n", i, C[i].l, C[i].r, C[i].sum);
	}
	int scom=0, lcom=nula, rcom=nula;
	for(int i=0; i<numcyc; ++i){
		ans+=C[i].sum;
		if(C[i].l<=rcom){
			//Mogu da ga uhvatim, i dalje sam u istoj komponenti
		}
		else{
			if(s>=lcom && s<=rcom)//Menjam komponentu
				scom=numcom;
			numcom++;
			lcom=C[i].l;
		}
		if(C[i].r>rcom)
			rcom=C[i].r;
	}
	ans+=2*numcom;
	//ans+=scom<numcom-scom?scom:numcom-scom;
	
	return ans;
}

Compilation message

books.cpp: In function 'long long int minimum_walk(std::vector<int>, int)':
books.cpp:54:6: warning: variable 'scom' set but not used [-Wunused-but-set-variable]
  int scom=0, lcom=nula, rcom=nula;
      ^~~~

Subtask #1
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 248 KB Output is correct
2 Correct 2 ms 356 KB Output is correct
3 Correct 3 ms 432 KB Output is correct
4 Correct 2 ms 432 KB Output is correct
5 Correct 3 ms 508 KB Output is correct
6 Correct 2 ms 556 KB Output is correct
7 Correct 2 ms 556 KB Output is correct
8 Correct 2 ms 592 KB Output is correct
9 Correct 2 ms 592 KB Output is correct
10 Correct 2 ms 592 KB Output is correct
11 Correct 3 ms 592 KB Output is correct
12 Correct 3 ms 592 KB Output is correct
13 Correct 2 ms 620 KB Output is correct
14 Correct 2 ms 620 KB Output is correct
15 Correct 2 ms 620 KB Output is correct
16 Correct 2 ms 620 KB Output is correct
17 Correct 2 ms 620 KB Output is correct
18 Correct 2 ms 620 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 248 KB Output is correct
2 Correct 2 ms 356 KB Output is correct
3 Correct 3 ms 432 KB Output is correct
4 Correct 2 ms 432 KB Output is correct
5 Correct 3 ms 508 KB Output is correct
6 Correct 2 ms 556 KB Output is correct
7 Correct 2 ms 556 KB Output is correct
8 Correct 2 ms 592 KB Output is correct
9 Correct 2 ms 592 KB Output is correct
10 Correct 2 ms 592 KB Output is correct
11 Correct 3 ms 592 KB Output is correct
12 Correct 3 ms 592 KB Output is correct
13 Correct 2 ms 620 KB Output is correct
14 Correct 2 ms 620 KB Output is correct
15 Correct 2 ms 620 KB Output is correct
16 Correct 2 ms 620 KB Output is correct
17 Correct 2 ms 620 KB Output is correct
18 Correct 2 ms 620 KB Output is correct
19 Correct 3 ms 620 KB Output is correct
20 Correct 2 ms 620 KB Output is correct
21 Correct 2 ms 620 KB Output is correct
22 Correct 2 ms 620 KB Output is correct
23 Correct 2 ms 620 KB Output is correct
24 Correct 2 ms 620 KB Output is correct
25 Correct 3 ms 620 KB Output is correct
26 Correct 3 ms 620 KB Output is correct
27 Correct 3 ms 620 KB Output is correct
28 Correct 3 ms 624 KB Output is correct
29 Correct 2 ms 624 KB Output is correct

Subtask #3
28.0 / 28.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 248 KB Output is correct
2 Correct 2 ms 356 KB Output is correct
3 Correct 3 ms 432 KB Output is correct
4 Correct 2 ms 432 KB Output is correct
5 Correct 3 ms 508 KB Output is correct
6 Correct 2 ms 556 KB Output is correct
7 Correct 2 ms 556 KB Output is correct
8 Correct 2 ms 592 KB Output is correct
9 Correct 2 ms 592 KB Output is correct
10 Correct 2 ms 592 KB Output is correct
11 Correct 3 ms 592 KB Output is correct
12 Correct 3 ms 592 KB Output is correct
13 Correct 2 ms 620 KB Output is correct
14 Correct 2 ms 620 KB Output is correct
15 Correct 2 ms 620 KB Output is correct
16 Correct 2 ms 620 KB Output is correct
17 Correct 2 ms 620 KB Output is correct
18 Correct 2 ms 620 KB Output is correct
19 Correct 3 ms 620 KB Output is correct
20 Correct 2 ms 620 KB Output is correct
21 Correct 2 ms 620 KB Output is correct
22 Correct 2 ms 620 KB Output is correct
23 Correct 2 ms 620 KB Output is correct
24 Correct 2 ms 620 KB Output is correct
25 Correct 3 ms 620 KB Output is correct
26 Correct 3 ms 620 KB Output is correct
27 Correct 3 ms 620 KB Output is correct
28 Correct 3 ms 624 KB Output is correct
29 Correct 2 ms 624 KB Output is correct
30 Correct 297 ms 9408 KB Output is correct
31 Correct 292 ms 9408 KB Output is correct
32 Correct 174 ms 9408 KB Output is correct
33 Correct 188 ms 25748 KB Output is correct
34 Correct 170 ms 25748 KB Output is correct
35 Correct 180 ms 25896 KB Output is correct
36 Correct 154 ms 25896 KB Output is correct
37 Correct 171 ms 25896 KB Output is correct
38 Correct 174 ms 25896 KB Output is correct
39 Correct 175 ms 25896 KB Output is correct
40 Correct 174 ms 25896 KB Output is correct
41 Correct 217 ms 25896 KB Output is correct
42 Correct 218 ms 25896 KB Output is correct
43 Correct 199 ms 25944 KB Output is correct

Subtask #4
0 / 20.0

# Verdict Execution time Memory Grader output
1 Incorrect 3 ms 25944 KB 3rd lines differ - on the 1st token, expected: '3304', found: '2744'
2 Halted 0 ms 0 KB -

Subtask #5
0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 248 KB Output is correct
2 Correct 2 ms 356 KB Output is correct
3 Correct 3 ms 432 KB Output is correct
4 Correct 2 ms 432 KB Output is correct
5 Correct 3 ms 508 KB Output is correct
6 Correct 2 ms 556 KB Output is correct
7 Correct 2 ms 556 KB Output is correct
8 Correct 2 ms 592 KB Output is correct
9 Correct 2 ms 592 KB Output is correct
10 Correct 2 ms 592 KB Output is correct
11 Correct 3 ms 592 KB Output is correct
12 Correct 3 ms 592 KB Output is correct
13 Correct 2 ms 620 KB Output is correct
14 Correct 2 ms 620 KB Output is correct
15 Correct 2 ms 620 KB Output is correct
16 Correct 2 ms 620 KB Output is correct
17 Correct 2 ms 620 KB Output is correct
18 Correct 2 ms 620 KB Output is correct
19 Correct 3 ms 620 KB Output is correct
20 Correct 2 ms 620 KB Output is correct
21 Correct 2 ms 620 KB Output is correct
22 Correct 2 ms 620 KB Output is correct
23 Correct 2 ms 620 KB Output is correct
24 Correct 2 ms 620 KB Output is correct
25 Correct 3 ms 620 KB Output is correct
26 Correct 3 ms 620 KB Output is correct
27 Correct 3 ms 620 KB Output is correct
28 Correct 3 ms 624 KB Output is correct
29 Correct 2 ms 624 KB Output is correct
30 Correct 297 ms 9408 KB Output is correct
31 Correct 292 ms 9408 KB Output is correct
32 Correct 174 ms 9408 KB Output is correct
33 Correct 188 ms 25748 KB Output is correct
34 Correct 170 ms 25748 KB Output is correct
35 Correct 180 ms 25896 KB Output is correct
36 Correct 154 ms 25896 KB Output is correct
37 Correct 171 ms 25896 KB Output is correct
38 Correct 174 ms 25896 KB Output is correct
39 Correct 175 ms 25896 KB Output is correct
40 Correct 174 ms 25896 KB Output is correct
41 Correct 217 ms 25896 KB Output is correct
42 Correct 218 ms 25896 KB Output is correct
43 Correct 199 ms 25944 KB Output is correct
44 Incorrect 3 ms 25944 KB 3rd lines differ - on the 1st token, expected: '3304', found: '2744'
45 Halted 0 ms 0 KB -