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Submission #31701

# Submission time Handle Problem Language Result Execution time Memory
31701 2017-08-31T12:26:29 Z top34051 Gondola (IOI14_gondola) C++14
75 / 100
 53 ms 7392 KB 
#include "gondola.h"
#include<bits/stdc++.h>
using namespace std;
#define maxn 100005
#define mod 1000000009LL

int n,m,mx;
int a[maxn], vis[250005];
map<int,int> s;

int valid(int N, int p[]) {
    int i, x = 0, val;
    n = N;
    //Build
    for(i=0;i<n;i++) if(p[i]<=n) x = i;
    val = p[x];
    for(i=0;i<n;i++) a[x] = val, x = (x+1)%n, val = val%n+1;
    //Check
    for(i=0;i<n;i++) if(p[i]<=n && a[i]!=p[i]) return 0;
    //Rep
    memset(vis,0,sizeof(vis));
    for(i=0;i<n;i++) {
        if(vis[p[i]]) return 0;
        vis[p[i]] = 1;
    }
    return 1;
}

int replacement(int N, int p[], int res[]) {
    int i, x=-1, val;
    n = N;
    //Build
    for(i=0;i<n;i++) if(p[i]<=n) x = i;
    if(x==-1) val = 1, x = 0;
    else val = p[x];
    for(i=0;i<n;i++) a[x] = val, x = (x+1)%n, val = val%n+1;
    //Check
    for(i=0;i<n;i++) {
        mx = max(mx,p[i]);
        if(p[i]>n) s[p[i]] = i;
    }
    m = 0;
    for(i=n+1;i<=mx;i++) {
        if(s.find(i)!=s.end()) res[m++] = a[s[i]], a[s[i]] = i, s.erase(s.find(i));
        else if(s.size()>0) res[m++] = a[s.begin()->second], a[s.begin()->second] = i;
        else return 0;
    }
    return m;
}

int countReplacement(int N, int p[]) {
    int i, x=-1, val, cy;
    long long ans;
    n = N;
    //Build
    cy = 0;
    for(i=0;i<n;i++) if(p[i]<=n) x = i;
    if(x==-1) val = 1, x = 0, cy = 1;
    else val = p[x];
    for(i=0;i<n;i++) a[x] = val, x = (x+1)%n, val = val%n+1;
    //Check
    for(i=0;i<n;i++) if(p[i]<=n && a[i]!=p[i]) return 0;
    //Rep
    memset(vis,0,sizeof(vis));
    for(i=0;i<n;i++) {
        if(vis[p[i]]) return 0;
        vis[p[i]] = 1;
    }
    //Check
    for(i=0;i<n;i++) {
        mx = max(mx,p[i]);
        if(p[i]>n) s[p[i]] = i;
    }
    m = 0; ans = 1;
    for(i=n+1;i<=mx;i++) {
        if(s.find(i)!=s.end()) s.erase(s.find(i));
        else if(s.size()>0) ans = ((ans*s.size())%mod + mod)%mod;//, printf("%d: s.size() = %d\n",i,s.size());
        else ans = 0;
    }
    if(cy && ans==0) printf("%d",1/0);
    return ans;
}

Compilation message

gondola.cpp: In function 'int countReplacement(int, int*)':
gondola.cpp:80:35: warning: division by zero [-Wdiv-by-zero]
     if(cy && ans==0) printf("%d",1/0);
                                   ^

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 4752 KB Output is correct
2 Correct 0 ms 4752 KB Output is correct
3 Correct 0 ms 4752 KB Output is correct
4 Correct 0 ms 4752 KB Output is correct
5 Correct 0 ms 4752 KB Output is correct

Subtask #2
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 4752 KB Output is correct
2 Correct 0 ms 4752 KB Output is correct
3 Correct 0 ms 4752 KB Output is correct
4 Correct 0 ms 4752 KB Output is correct
5 Correct 0 ms 4752 KB Output is correct
6 Correct 6 ms 4752 KB Output is correct
7 Correct 13 ms 4752 KB Output is correct
8 Correct 9 ms 4752 KB Output is correct
9 Correct 3 ms 4752 KB Output is correct
10 Correct 6 ms 4752 KB Output is correct

Subtask #3
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 4752 KB Output is correct
2 Correct 0 ms 4752 KB Output is correct
3 Correct 0 ms 4752 KB Output is correct
4 Correct 0 ms 4752 KB Output is correct
5 Correct 0 ms 4752 KB Output is correct
6 Correct 6 ms 4752 KB Output is correct
7 Correct 13 ms 4752 KB Output is correct
8 Correct 9 ms 4752 KB Output is correct
9 Correct 3 ms 4752 KB Output is correct
10 Correct 16 ms 4752 KB Output is correct
11 Correct 0 ms 4752 KB Output is correct
12 Correct 0 ms 4752 KB Output is correct
13 Correct 6 ms 4752 KB Output is correct
14 Correct 0 ms 4752 KB Output is correct
15 Correct 16 ms 4752 KB Output is correct

Subtask #4
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 4752 KB Output is correct
2 Correct 0 ms 4752 KB Output is correct
3 Correct 0 ms 4752 KB Output is correct
4 Correct 0 ms 4752 KB Output is correct
5 Correct 0 ms 4752 KB Output is correct

Subtask #5
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 4752 KB Output is correct
2 Correct 0 ms 4752 KB Output is correct
3 Correct 0 ms 4752 KB Output is correct
4 Correct 0 ms 4752 KB Output is correct
5 Correct 0 ms 4752 KB Output is correct
6 Correct 0 ms 4752 KB Output is correct
7 Correct 0 ms 4752 KB Output is correct
8 Correct 0 ms 4752 KB Output is correct
9 Correct 0 ms 4752 KB Output is correct
10 Correct 0 ms 4752 KB Output is correct

Subtask #6
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 4752 KB Output is correct
2 Correct 0 ms 4752 KB Output is correct
3 Correct 0 ms 4752 KB Output is correct
4 Correct 0 ms 4752 KB Output is correct
5 Correct 0 ms 4752 KB Output is correct
6 Correct 0 ms 4752 KB Output is correct
7 Correct 0 ms 4752 KB Output is correct
8 Correct 0 ms 4752 KB Output is correct
9 Correct 0 ms 4752 KB Output is correct
10 Correct 0 ms 4752 KB Output is correct
11 Correct 13 ms 4752 KB Output is correct
12 Correct 6 ms 4752 KB Output is correct
13 Correct 26 ms 6204 KB Output is correct
14 Correct 9 ms 4752 KB Output is correct
15 Correct 23 ms 5544 KB Output is correct

Subtask #7
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 4752 KB Output is correct
2 Correct 0 ms 4752 KB Output is correct
3 Correct 0 ms 4752 KB Output is correct

Subtask #8
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 4752 KB Output is correct
2 Correct 0 ms 4752 KB Output is correct
3 Correct 0 ms 4752 KB Output is correct
4 Correct 0 ms 4752 KB Output is correct
5 Correct 0 ms 4752 KB Output is correct
6 Correct 0 ms 4752 KB Output is correct
7 Correct 0 ms 4752 KB Output is correct
8 Correct 0 ms 4752 KB Output is correct

Subtask #9
0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 4752 KB Output is correct
2 Correct 0 ms 4752 KB Output is correct
3 Correct 0 ms 4752 KB Output is correct
4 Correct 0 ms 4752 KB Output is correct
5 Correct 0 ms 4752 KB Output is correct
6 Correct 0 ms 4752 KB Output is correct
7 Correct 0 ms 4752 KB Output is correct
8 Correct 0 ms 4752 KB Output is correct
9 Correct 53 ms 7392 KB Output is correct
10 Correct 36 ms 6732 KB Output is correct
11 Correct 13 ms 5808 KB Output is correct
12 Correct 16 ms 6072 KB Output is correct
13 Incorrect 9 ms 5016 KB Output isn't correct

Subtask #10
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 4752 KB Output is correct
2 Correct 0 ms 4752 KB Output is correct
3 Correct 0 ms 4752 KB Output is correct
4 Correct 0 ms 4752 KB Output is correct
5 Correct 0 ms 4752 KB Output is correct
6 Correct 0 ms 4752 KB Output is correct
7 Correct 0 ms 4752 KB Output is correct
8 Correct 0 ms 4752 KB Output is correct
9 Correct 39 ms 7392 KB Output is correct
10 Correct 26 ms 6732 KB Output is correct
11 Correct 16 ms 5808 KB Output is correct
12 Correct 19 ms 6072 KB Output is correct
13 Incorrect 6 ms 5016 KB Output isn't correct
14 Halted 0 ms 0 KB -