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Submission #18702

# Submission time Handle Problem Language Result Execution time Memory
18702 2016-02-14T07:04:11 Z suhgyuho_william Gondola (IOI14_gondola) C++
75 / 100
 60 ms 7584 KB 
#include "gondola.h"
#include <algorithm>
#include <map>

using namespace std;

map<int,bool> Map;
int valid(int n, int inputSeq[])
{
	int i;
	int s,t;

	s = -1;
    for(i=0; i<n; i++){
		if(Map.find(inputSeq[i]) != Map.end()) return 0;
		Map[inputSeq[i]] = true;
        if(inputSeq[i] <= n){
            t = i+2-inputSeq[i];
			if(t <= 0) t += n;
			if(s == -1){
				s = t;
			}else if(s != t){
				return 0;
			}
        }
    }
    return 1;
}

//----------------------
struct datar{
	int num,value;
}a[100002];
bool cmp(datar x,datar y){
	return x.value < y.value;
}
int first[100002];
int replacement(int n, int gondolaSeq[], int replacementSeq[])
{
	int i,j,cnt;
	int s,t,big,nnum;

	s = -1;
    for(i=0; i<n; i++){
        if(gondolaSeq[i] <= n){
            t = i+2-gondolaSeq[i];
			if(t <= 0) t += n;
			s = t;
			break;
        }
    }
	big = 0;
	for(i=0; i<n; i++) big = max(big,gondolaSeq[i]);
    if(big == n){
		return 0;
    }
    for(i=n; i>=1; i--) gondolaSeq[i] = gondolaSeq[i-1];
    cnt = 0;
    if(s == -1) s = 1;
    first[s] = 1;
    for(i=1; i<n; i++){
		t = s+i;
		if(t > n) t -= n;
		first[t] = i+1;
    }
    for(i=1; i<=n; i++){
		a[i].num = i;
		a[i].value = gondolaSeq[i];
    }
    sort(a+1,a+n+1,cmp);
    nnum = n+1;
    if(a[1].value > n){
		replacementSeq[cnt] = first[a[1].num];
		cnt++; nnum++;
		for(i=nnum; i<=a[1].value; i++){
			replacementSeq[cnt] = nnum-1;
			cnt++; nnum++;
		}
    }
    for(i=2; i<=n; i++){
        if(a[i].value <= n) continue;
        replacementSeq[cnt] = first[a[i].num]; cnt++; nnum++;
        for(j=nnum; j<=a[i].value; j++){
			replacementSeq[cnt] = nnum-1;
			cnt++; nnum++;
        }
    }

	return cnt;
}

//----------------------
#define MOD 1000000009;

long long mul(long long x,long long y){ // return x^y;
	if(y == 0) return 1;
	if(y == 1) return x;
	long long tmp = mul(x,y/2);
	tmp *= tmp; tmp %= MOD;
	if(y%2 == 1){
		tmp *= x;
		tmp %= MOD;
	}
	return tmp;
}

long long ans;
int countReplacement(int n, int inputSeq[])
{
	if(valid(n,inputSeq) == 0) return 0;
	int i,j,t;
	int s,big;
	long long x,nnum;

	s = -1;
    for(i=0; i<n; i++){
        if(inputSeq[i] <= n){
            s = i+2-inputSeq[i];
			if(s <= 0) s += n;
			break;
        }
    }
	big = 0;
	for(i=0; i<n; i++) big = max(big,inputSeq[i]);
    if(big == n){
		return 1;
    }
    if(s == -1){
        s = 1;
		ans = (long long)n;
    }else ans = 1;

	for(i=n; i>=1; i--) inputSeq[i] = inputSeq[i-1];
    first[s] = 1;
    for(i=1; i<n; i++){
		t = s+i;
		if(t > n) t -= n;
		first[t] = i+1;
    }
    for(i=1; i<=n; i++){
		a[i].num = i;
		a[i].value = inputSeq[i];
    }
    sort(a+1,a+n+1,cmp);
    nnum = n+1;
    x = n;
    if(a[1].value > n){
		nnum++;
		for(i=nnum; i<=a[1].value; i++){
			nnum++;
		}
		ans *= mul(x,(long long)(a[1].value-nnum+1));
		ans %= MOD;
		nnum = a[1].value+1;
    }
    x--;
    for(i=2; i<=n; i++){
        if(a[i].value <= n){
			x--;
			continue;
        }
        nnum++;
        ans *= mul(x,(long long)(a[i].value-nnum+1));
        ans %= MOD;
        nnum = a[i].value+1;
        x--;
    }

	return (int)ans;
}

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 3756 KB Output is correct
2 Correct 0 ms 3756 KB Output is correct
3 Correct 0 ms 3756 KB Output is correct
4 Correct 0 ms 3756 KB Output is correct
5 Correct 0 ms 3756 KB Output is correct

Subtask #2
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 3756 KB Output is correct
2 Correct 0 ms 3756 KB Output is correct
3 Correct 0 ms 3756 KB Output is correct
4 Correct 0 ms 3756 KB Output is correct
5 Correct 0 ms 3756 KB Output is correct
6 Correct 12 ms 5472 KB Output is correct
7 Correct 14 ms 3756 KB Output is correct
8 Correct 20 ms 7056 KB Output is correct
9 Correct 7 ms 4812 KB Output is correct
10 Correct 49 ms 7584 KB Output is correct

Subtask #3
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 3756 KB Output is correct
2 Correct 0 ms 3756 KB Output is correct
3 Correct 0 ms 3756 KB Output is correct
4 Correct 0 ms 3756 KB Output is correct
5 Correct 0 ms 3756 KB Output is correct
6 Correct 15 ms 5472 KB Output is correct
7 Correct 13 ms 3756 KB Output is correct
8 Correct 24 ms 7056 KB Output is correct
9 Correct 9 ms 4812 KB Output is correct
10 Correct 41 ms 7584 KB Output is correct
11 Correct 0 ms 3756 KB Output is correct
12 Correct 0 ms 3756 KB Output is correct
13 Correct 6 ms 3756 KB Output is correct
14 Correct 0 ms 3756 KB Output is correct
15 Correct 13 ms 3756 KB Output is correct

Subtask #4
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 3756 KB Output is correct
2 Correct 0 ms 3756 KB Output is correct
3 Correct 0 ms 3756 KB Output is correct
4 Correct 0 ms 3756 KB Output is correct
5 Correct 0 ms 3756 KB Output is correct

Subtask #5
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 3756 KB Output is correct
2 Correct 0 ms 3756 KB Output is correct
3 Correct 0 ms 3756 KB Output is correct
4 Correct 0 ms 3756 KB Output is correct
5 Correct 0 ms 3756 KB Output is correct
6 Correct 0 ms 3756 KB Output is correct
7 Correct 0 ms 3756 KB Output is correct
8 Correct 0 ms 3756 KB Output is correct
9 Correct 0 ms 3756 KB Output is correct
10 Correct 0 ms 3756 KB Output is correct

Subtask #6
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 3756 KB Output is correct
2 Correct 0 ms 3756 KB Output is correct
3 Correct 0 ms 3756 KB Output is correct
4 Correct 0 ms 3756 KB Output is correct
5 Correct 0 ms 3756 KB Output is correct
6 Correct 0 ms 3756 KB Output is correct
7 Correct 0 ms 3756 KB Output is correct
8 Correct 0 ms 3756 KB Output is correct
9 Correct 0 ms 3756 KB Output is correct
10 Correct 0 ms 3756 KB Output is correct
11 Correct 7 ms 3756 KB Output is correct
12 Correct 8 ms 3756 KB Output is correct
13 Correct 18 ms 3756 KB Output is correct
14 Correct 11 ms 3756 KB Output is correct
15 Correct 21 ms 3756 KB Output is correct

Subtask #7
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 3756 KB Output is correct
2 Correct 0 ms 3756 KB Output is correct
3 Correct 0 ms 3756 KB Output is correct

Subtask #8
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 3756 KB Output is correct
2 Correct 0 ms 3756 KB Output is correct
3 Correct 0 ms 3756 KB Output is correct
4 Correct 0 ms 3756 KB Output is correct
5 Correct 0 ms 3756 KB Output is correct
6 Correct 0 ms 3756 KB Output is correct
7 Correct 0 ms 3756 KB Output is correct
8 Correct 0 ms 3756 KB Output is correct

Subtask #9
0.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 3756 KB Output is correct
2 Correct 0 ms 3756 KB Output is correct
3 Correct 0 ms 3756 KB Output is correct
4 Correct 0 ms 3756 KB Output is correct
5 Correct 0 ms 3756 KB Output is correct
6 Correct 0 ms 3756 KB Output is correct
7 Correct 0 ms 3756 KB Output is correct
8 Correct 0 ms 3756 KB Output is correct
9 Correct 56 ms 7188 KB Output is correct
10 Correct 42 ms 6528 KB Output is correct
11 Correct 12 ms 4680 KB Output is correct
12 Correct 21 ms 4944 KB Output is correct
13 Incorrect 2 ms 4020 KB Output isn't correct

Subtask #10
0.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 3756 KB Output is correct
2 Correct 0 ms 3756 KB Output is correct
3 Correct 0 ms 3756 KB Output is correct
4 Correct 0 ms 3756 KB Output is correct
5 Correct 0 ms 3756 KB Output is correct
6 Correct 0 ms 3756 KB Output is correct
7 Correct 0 ms 3756 KB Output is correct
8 Correct 0 ms 3756 KB Output is correct
9 Correct 60 ms 7188 KB Output is correct
10 Correct 48 ms 6528 KB Output is correct
11 Correct 16 ms 4680 KB Output is correct
12 Correct 20 ms 4944 KB Output is correct
13 Incorrect 0 ms 4020 KB Output isn't correct
14 Halted 0 ms 0 KB -