Submission #919353

#	Time	Username	Problem	Language	Result	Execution time	Memory
919353		winter0101	Chameleon's Love (JOI20_chameleon)	C++14	Compilation error	0 ms	0 KiB

chameleon

#include<bits/stdc++.h>
#include "chameleon.h"
using namespace std;
#define all(fl) fl.begin(),fl.end()
#define pb push_back
#define fi first
#define se second
#define for1(i,j,k) for(int i=j;i<=k;i++)
#define for2(i,j,k) for(int i=j;i>=k;i--)
#define for3(i,j,k,l) for(int i=j;i<=k;i+=l)
#define lb lower_bound
#define ub upper_bound
#define sz(a) (int)a.size()
#define pii pair<int,int>
#define pli pair<long long,int>
#define gcd __gcd
#define lcm(x,y) x*y/__gcd(x,y)
const int maxn=1e3+9;
vector<int>a[maxn];
bool edg[maxn][maxn];
bool use[maxn];
void Solve(int n){
    if (n<=50){
    for1(i,1,2*n){
    for1(j,1,2*n){
    if (i==j)continue;
    if (Query({i,j})==1){
    a[i].pb(j);
    }
    }
    }
    else {
    for1(i,1,n){
    for1(j,n+1,2*n){
    use[j]=0;
    }
    while (true){
    int l=n+1,r=2*n,ans=-1;
    while (l<=r){
    int mid=(l+r)/2;
    vector<int>check;
    check.pb(i);
    for1(j,n+1,mid){
    if (use[j])continue;
    check.pb(j);
    }
    if (Query(check)<sz(check)){
    ans=mid;
    r=mid-1;
    }
    else l=mid+1;
    }
    if (ans==-1)break;
    use[ans]=1;
    a[i].pb(ans);
    a[ans].pb(i);
    }
    }
    //}
    vector<pii>ans;
    for1(i,1,2*n){
    if (sz(a[i])==1){
    for (auto v:a[i]){
    edg[v][i]=edg[i][v]=1;
    }
    }
    else {
    vector<int>check;
    check.pb(i);
    for1(j,0,sz(a[i])-1){
    check.pb(a[i][j]);
    for1(k,j+1,sz(a[i])-1){
    check.pb(a[i][k]);
    if (Query(check)==1){
    edg[i][a[i][j]]=1;
    edg[i][a[i][k]]=1;
    }
    check.pop_back();
    }
    check.pop_back();
    }
    }
    }
    for1(i,1,2*n){
    for1(j,i+1,2*n){
    if (edg[i][j]&&edg[j][i]){
    Answer(i,j);
    }
    }
    }
}

Compilation message (stderr)

chameleon.cpp: In function 'void Solve(int)':
chameleon.cpp:32:5: error: expected '}' before 'else'
   32 |     else {
      |     ^~~~
chameleon.cpp:23:15: note: to match this '{'
   23 |     if (n<=50){
      |               ^
chameleon.cpp:91:1: error: expected '}' at end of input
   91 | }
      | ^
chameleon.cpp:22:18: note: to match this '{'
   22 | void Solve(int n){
      |                  ^