Submission #576158

#	Time	Username	Problem	Language	Result	Execution time	Memory
576158		urd05	Park (JOI17_park)	C++17	20 / 100	200 ms	464 KiB

park

#include "park.h"
#include <bits/stdc++.h>
using namespace std;
 
int place[1400];
int n;
 
bool comp(int a,int b) {
    for(int i=0;i<n;i++) {
        if (i==a) {
            place[i]=0;
        }
        else {
            place[i]=1;
        }
    }
    if (Ask(0,b,place)==0) {
        return true;
    }
    else {
        return false;
    }
}
 
void Detect(int t,int nn) {
    n=nn;
    if (t==1) {
        for(int i=0;i<n;i++) {
            for(int j=i+1;j<n;j++) {
                for(int k=0;k<n;k++) {
                    if (k==i||k==j) {
                        place[k]=1;
                    }
                    else {
                        place[k]=0;
                    }
                }
                if (Ask(i,j,place)==1) {
                    Answer(i,j);
                }
            }
        }
        return;
    }
    if (t==2) {
        vector<int> vec;
        for(int i=1;i<n-1;i++) {
            vec.push_back(i);
        }
        sort(vec.begin(),vec.end(),comp);
        Answer(0,vec[0]);
        Answer(vec[vec.size()-1],n-1);
        for(int i=1;i<vec.size();i++) {
            int one=vec[i-1];
            int two=vec[i];
            Answer(min(one,two),max(one,two));
        }
        return;
    }
    if (t==3) {
        vector<int> vec[10];
        bool vis[1400];
        memset(vis,0,sizeof(vis));
        vis[0]=true;
        vec[0].push_back(0);
        for(int j=1;j<=9;j++) {
            memset(place,0,sizeof(place));
            for(int k=0;k<j;k++) {
                for(int i=0;i<vec[k].size();i++) {
                    place[vec[k][i]]=1;
                }
            }
            for(int i=0;i<n;i++) {
                if (!vis[i]) {
                    place[i]=1;
                    if (Ask(0,i,place)==1) {
                        vec[j].push_back(i);
                        vis[i]=true;
                    }
                    place[i]=0;
                }
            }
            for(int i=0;i<vec[j-1].size();i++) {
                place[vec[j-1][i]]=0;
            }
            for(int i=0;i<vec[j].size();i++) {
                int now=vec[j][i];
                int l=0;
                int r=vec[j-1].size()-1;
                while (l<r) {
                    int mid=(l+r)/2;
                    for(int k=l;k<=mid;k++) {
                        place[vec[j-1][k]]=1;
                    }
                    place[now]=1;
                    if (Ask(0,now,place)==1) {
                        r=mid;
                    }
                    else {
                        l=mid+1;
                    }
                    for(int k=l;k<=mid;k++) {
                        place[vec[j-1][k]]=0;
                    }
                    place[now]=0;
                }
                Answer(min(vec[j-1][l],now),max(vec[j-1][l],now));
            }
        }
    }
}

Compilation message (stderr)

park.cpp: In function 'void Detect(int, int)':
park.cpp:53:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   53 |         for(int i=1;i<vec.size();i++) {
      |                     ~^~~~~~~~~~~
park.cpp:69:30: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   69 |                 for(int i=0;i<vec[k].size();i++) {
      |                             ~^~~~~~~~~~~~~~
park.cpp:83:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   83 |             for(int i=0;i<vec[j-1].size();i++) {
      |                         ~^~~~~~~~~~~~~~~~
park.cpp:86:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   86 |             for(int i=0;i<vec[j].size();i++) {
      |                         ~^~~~~~~~~~~~~~

• Subtask 1: 10 / 10
• Subtask 2: 10 / 10
• Subtask 3: 0 / 27
• Subtask 4: 0 / 30
• Subtask 5: 0 / 23