# | Time | Username | Problem | Language | Result | Execution time | Memory |
---|---|---|---|---|---|---|---|
445586 | AlexRex0 | Gondola (IOI14_gondola) | C++14 | 0 ms | 0 KiB |
This submission is migrated from previous version of oj.uz, which used different machine for grading. This submission may have different result if resubmitted.
#include <stdio.h>
#include <assert.h>
//#include "gondola.h"
#include <bits/stdc++.h>
using namespace std;
set<int> existe;
int valid(int n, int inputSeq[])
{
int valido = 1, inicio = -1, valor = INT_MAX;
for(int i = 0; i < n; ++i){
if(inputSeq[i] <= n && inputSeq[i] < valor){
inicio = i;
valor = inputSeq[i];
}
if(existe.count(inputSeq[i]) != 0){
valido = 0;
}
existe.insert(inputSeq[i]);
}
if(inicio != -1){
valor++;
for(int i = inicio + 1; i < n; ++i){
if(inputSeq[i] <= n && inputSeq[i] != valor){
valido = 0;
}
valor++;
}
for(int i = 0; i < inicio; ++i){
if(inputSeq[i] <= n && inputSeq[i] != valor){
valido = 0;
}
valor++;
}
}
return valido;
}
//----------------------
int replacement(int n, int gondolaSeq[], int replacementSeq[])
{
return -1;
}
//----------------------
bool fijo[250002];
long long int acumulado[250002];
long long int original[250002];
long long int aux, pos = -1, res = 1, suma;
int countReplacement(int n, int inputSeq[])
{
for(int i = 0; i < n; ++i){
if(inputSeq[i] <= n){
aux = inputSeq[i];
pos = i;
break;
}
}
if(pos == -1){
aux = 1;
for(int i = 0; i < n; ++i){
original[i] = aux;
aux++;
}
res*= n;
res%= 1000000009;
}else{
while(aux > 1){
aux--;
pos--;
if(pos == -1){
pos = n - 1;
}
}
for(int i = pos; i < n; ++i){
original[i] = aux;
aux++;
}
for(int i = 0; i < pos; ++i){
original[i] = aux;
aux++;
}
}
for(int i = 0; i < n; ++i){
fijo[inputSeq[i]] = true;
fijo[original[i]] = true;
acumulado[original[i]]++;
acumulado[inputSeq[i] + 1]--;
}
for(int i = 1; i <= 250000; ++i){
suma+= acumulado[i];
if(!fijo[i]){
if(suma > 0){
res*= suma;
}
res%= 1000000009;
}
}
return res;
}
int gondolaSequence[100001];
int replacementSequence[250001];
int main()
{
int i, n, tag;
int nr;
assert(scanf("%d", &tag)==1);
assert(scanf("%d", &n)==1);
for(i=0;i< n;i++)
assert( scanf("%d", &gondolaSequence[i]) ==1);
switch (tag){
case 1: case 2: case 3:
printf("%d\n", valid(n, gondolaSequence));
break;
case 4: case 5: case 6:
nr = replacement(n, gondolaSequence, replacementSequence);
printf("%d ", nr);
if (nr > 0)
{
for (i=0; i<nr-1; i++)
printf("%d ", replacementSequence[i]);
printf("%d\n", replacementSequence[nr-1]);
}
else printf("\n");
break;
case 7: case 8: case 9: case 10:
printf("%d\n", countReplacement(n, gondolaSequence));
break;
}
return 0;
}