Submission #16428

#	Time	Username	Problem	Language	Result	Execution time	Memory
16428		atomzeno	Gondola (IOI14_gondola)	C++98	20 / 100	16 ms	6356 KiB

gondola

#include "gondola.h"
#include<algorithm>
using namespace std;
#define MX 250001
int d[MX],check[MX];
int l,ind;
int valid(int n, int inputSeq[]){
    int i,cnt=0,ind;
    for(i=0;i<=250000;i++){
        check[i]=0;
    }
    for(i=0;i<n;i++){
        if(inputSeq[i]<=n){
            cnt=1;
            ind=(inputSeq[i]-1-i)+n;
            ind%=n;
            break;
        }
    }
    for(i=0;i<n;i++){
        check[inputSeq[i]]++;
        if(check[inputSeq[i]]>=2){return 0;}
    }
    if(cnt==0){return 1;}
    for(i=0;i<n;i++){
        d[(ind+i)%n]=inputSeq[i];
    }
    for(i=0;i<n;i++){
        if(d[i]<=n&&d[i]!=(i+1)){
            return 0;
        }
    }
    return 1;
}
struct DT{
    int x,y;
    bool operator<(const DT&r)const{
        return r.x>x;
    }
}make[MX];
int replacement(int n, int gondolaSeq[], int replacementSeq[]){
    int ll=0,j,i,fl=0,o=-1;
    for(i=0;i<n;i++){
        if(gondolaSeq[i]<n){
            fl=1;
            break;
        }
    }
    for(j=0;j<n;j++){
        make[j].x=gondolaSeq[j];
        if(fl==1){
            make[j].y=(gondolaSeq[i]-i+n+j)%n;
            if(make[j].y==0){make[j].y=n;}
        }
    }
    sort(make,make+n);
    if(fl==0){
        for(j=0;j<n;j++){make[j].y=j+1;}
    }
    o=0;
    for(j=0;j<n;j++){
        for(;;){
            if(make[j].x==make[j].y){break;}
            else{
                if(o==0){
                    o=1;
                    replacementSeq[ll++]=make[j].y;
                    make[j].y=n+1;
                }
                else{
                    replacementSeq[ll++]=make[j].y;
                    make[j].y++;
                }
            }
        }
    }
    return ll;
}

//----------------------

int countReplacement(int n, int inputSeq[]){
    return -3;
}

• Subtask 1: 5 / 5
• Subtask 2: 5 / 5
• Subtask 3: 10 / 10
• Subtask 4: 0 / 5
• Subtask 5: 0 / 10
• Subtask 6: 0 / 20
• Subtask 7: 0 / 5
• Subtask 8: 0 / 15
• Subtask 9: 0 / 15
• Subtask 10: 0 / 10