oj.uz

Submission #146532

# Submission time Handle Problem Language Result Execution time Memory
146532 2019-08-24T10:05:24 Z brcode Xylophone (JOI18_xylophone) C++14
0 / 100
 2 ms 248 KB 
#include <iostream>
#include "xylophone.h"
using namespace std;
const int MAXN = 1e5+5;
int pairs[MAXN];
int triplets[MAXN];
int ord[MAXN][4];
int ans[MAXN];
void solve(int n){
    for(int i=1;i<n;i++){
        pairs[i] = query(i,i+1);
    }
    for(int i=1;i<n-1;i++){
        triplets[i] = query(i,i+2);
    }
    ord[1][1] = 1;
    ord[1][0] = 0;
    for(int i=1;i<n-1;i++){
        if(triplets[i] == pairs[i]+pairs[i+1]){
            ord[i+1][1] = ord[i][1];
            ord[i+1][0] = ord[i][0];
        }else{
            ord[i+1][1] = !ord[i][1];
            ord[i+1][0] = !ord[i][0];
        }
    }
    ans[1] =1;
    int holdmin = 0;
    for(int i=2;i<=n;i++){
        if(ord[i][0]){
            ans[i] = ans[i-1]+pairs[i-1];
        }else{
            ans[i] = ans[i-1]-pairs[i-1];
        }
        holdmin = min(holdmin,ans[i]);
    }
    
    for(int i=1;i<=n;i++){
        ans[i]+=holdmin;
    }
    bool ok = true;
    for(int i=1;i<n-1;i++){
        if(max(ans[i],max(ans[i+1],ans[i+2])) - min(ans[i],min(ans[i+1],ans[i+2]))!=triplets[i]){
            ok = false;
            break;
        }
    }
    if(ok){
        for(int i=1;i<=n;i++){
            answer(i,ans[i]);
        }
        return;
    }
    ans[1] =1;
    holdmin = 0;
    for(int i=2;i<=n;i++){
        if(ord[i][1]){
            ans[i] = ans[i-1]+pairs[i-1];
        }else{
            ans[i] = ans[i-1]-pairs[i-1];
        }
        holdmin = min(holdmin,ans[i]);
    }
    
    for(int i=1;i<=n;i++){
        ans[i]+=holdmin;
    }
    ok = true;
    for(int i=1;i<n-1;i++){
        if(max(ans[i],max(ans[i+1],ans[i+2])) - min(ans[i],min(ans[i+1],ans[i+2]))!=triplets[i]){
            ok = false;
            break;
        }
    }
    for(int i=1;i<=n;i++){
        answer(i,ans[i]);
    }
    
}

Subtask #1
0 / 11.0

# Verdict Execution time Memory Grader output
1 Incorrect 2 ms 248 KB Wrong Answer [4
2 Halted 0 ms 0 KB -

Subtask #2
0 / 36.0

# Verdict Execution time Memory Grader output
1 Incorrect 2 ms 248 KB Wrong Answer [4
2 Halted 0 ms 0 KB -

Subtask #3
0 / 53.0

# Verdict Execution time Memory Grader output
1 Incorrect 2 ms 248 KB Wrong Answer [4
2 Halted 0 ms 0 KB -