Submission #45310

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
45310	2018-04-12T19:45:41 Z	imaxblue	Triumphal arch (POI13_luk)	C++17	Compilation error	0 ms	0 KB

luk

#include <bits/stdc++.h>
using namespace std;
#define ll long long
#define mp make_pair
#define pb push_back
#define x first
#define y second
#define pii pair<int, int>
#define p3i pair<pii, int>
#define pll pair<ll, ll>
#define p3l pair<pll, ll>
#define vi vector<int>
#define vpii vector<pii>
#define vp3i vector<p3i>
#define vpll vector<pll>
#define vp3l vector<p3l>#include <bits/stdc++.h>
using namespace std;
#define ll long long
#define mp make_pair
#define pb push_back
#define x first
#define y second
#define pii pair<int, int>
#define p3i pair<pii, int>
#define pll pair<ll, ll>
#define p3l pair<pll, ll>
#define vi vector<int>
#define vpii vector<pii>
#define vp3i vector<p3i>
#define vpll vector<pll>
#define vp3l vector<p3l>
#define lseg L, (L+R)/2, N*2+1
#define rseg (L+R)/2+1, R, N*2+2
#define ub upper_bound
#define lb lower_bound
#define pq priority_queue
#define MN 1000000007
#define fox(k, x) for (int k=0; k<x; ++k)
#define fox1(k, x) for (int k=1; k<=x; ++k)
#define foxr(k, x) for (int k=x-1; k>=0; --k)
#define fox1r(k, x) for (int k=x; k>0; --k)
#define ms multiset
#define flood(x) memset(x, 0x3f3f3f3f, sizeof x)
#define drain(x) memset(x, 0, sizeof x)
#define rng() ((rand() << 14)+rand())
#define scan(X) do{while((X=getchar())<'0'); for(X-='0'; '0'<=(_=getchar()); X=(X<<3)+(X<<1)+_-'0');}while(0)
char _;
#define pi 3.14159265358979323846
#define siz(x) int(x.size())
#define int ll

int n, x, y, lo, mid, hi=300000;
vector<int> v[300005];
bool dfs(int N, ll D, int P){
    D=D+mid-siz(v[N])+(P!=-1);
    if (D<0) return 0;
    fox(l, v[N].size()){
        if (v[N][l]==P) continue;
        if (!dfs(v[N][l], D, N)) return 0;
    }
    return 1;
}
int32_t main(){
    scanf("%lli", &n);
    fox(l, n-1){
        scanf("%lli%lli", &x, &y);
        v[x].pb(y);
        v[y].pb(x);
    }
    while(lo<hi){
        mid=(lo+hi)/2;
        if (dfs(1, 0, -1)) hi=mid;
        else lo=mid+1;
    }
    mid=150000;
    //cout << dfs(1, 0, -1) << endl;
    cout << lo;
    return 0;
}

#define lseg L, (L+R)/2, N*2+1
#define rseg (L+R)/2+1, R, N*2+2
#define ub upper_bound
#define lb lower_bound
#define pq priority_queue
#define MN 1000000007
#define fox(k, x) for (int k=0; k<x; ++k)
#define fox1(k, x) for (int k=1; k<=x; ++k)
#define foxr(k, x) for (int k=x-1; k>=0; --k)
#define fox1r(k, x) for (int k=x; k>0; --k)
#define ms multiset
#define flood(x) memset(x, 0x3f3f3f3f, sizeof x)
#define drain(x) memset(x, 0, sizeof x)
#define rng() ((rand() << 14)+rand())
#define scan(X) do{while((X=getchar())<'0'); for(X-='0'; '0'<=(_=getchar()); X=(X<<3)+(X<<1)+_-'0');}while(0)
char _;
#define pi 3.14159265358979323846
#define siz(x) int(x.size())

int n, x, y, lo, mid, hi=300000, cnt[300005];
vector<int> v[300005];
bool dfs(int N, int D, int P){
    fox(l, v[N].size()){
        if (v[N][l]==P) continue;
        dfs(v[N][l], D+1, N);
    }
    cnt[D]++;
    return 1;
}
int32_t main(){
    scanf("%i", &n);
    fox(l, n-1){
        scanf("%i%i", &x, &y);
        v[x].pb(y);
        v[y].pb(x);
    }
    dfs(1, 0, -1);
    fox1(l, n) lo=max(lo, cnt[l]);
    //cout << dfs(1, 0, -1) << endl;
    cout << lo;
    return 0;
}

Compilation message

luk.cpp:31:0: warning: "vp3l" redefined
 #define vp3l vector<p3l>
 
luk.cpp:16:0: note: this is the location of the previous definition
 #define vp3l vector<p3l>#include <bits/stdc++.h>
 
luk.cpp: In function 'bool dfs(long long int, long long int, long long int)':
luk.cpp:18:12: error: expected primary-expression before 'long'
 #define ll long long
            ^
luk.cpp:50:13: note: in expansion of macro 'll'
 #define int ll
             ^~
luk.cpp:49:16: note: in expansion of macro 'int'
 #define siz(x) int(x.size())
                ^~~
luk.cpp:55:13: note: in expansion of macro 'siz'
     D=D+mid-siz(v[N])+(P!=-1);
             ^~~
luk.cpp:38:34: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
 #define fox(k, x) for (int k=0; k<x; ++k)
luk.cpp:57:9:
     fox(l, v[N].size()){
         ~~~~~~~~~~~~~~            
luk.cpp:57:5: note: in expansion of macro 'fox'
     fox(l, v[N].size()){
     ^~~
luk.cpp: At global scope:
luk.cpp:96:6: error: redefinition of 'char _'
 char _;
      ^
luk.cpp:47:6: note: 'char _' previously declared here
 char _;
      ^
luk.cpp:100:5: error: redefinition of 'long long int n'
 int n, x, y, lo, mid, hi=300000, cnt[300005];
     ^
luk.cpp:52:5: note: 'long long int n' previously declared here
 int n, x, y, lo, mid, hi=300000;
     ^
luk.cpp:21:11: error: redefinition of 'long long int first'
 #define x first
           ^
luk.cpp:100:8: note: in expansion of macro 'x'
 int n, x, y, lo, mid, hi=300000, cnt[300005];
        ^
luk.cpp:21:11: note: 'long long int first' previously declared here
 #define x first
           ^
luk.cpp:52:8: note: in expansion of macro 'x'
 int n, x, y, lo, mid, hi=300000;
        ^
luk.cpp:22:11: error: redefinition of 'long long int second'
 #define y second
           ^
luk.cpp:100:11: note: in expansion of macro 'y'
 int n, x, y, lo, mid, hi=300000, cnt[300005];
           ^
luk.cpp:22:11: note: 'long long int second' previously declared here
 #define y second
           ^
luk.cpp:52:11: note: in expansion of macro 'y'
 int n, x, y, lo, mid, hi=300000;
           ^
luk.cpp:100:14: error: redefinition of 'long long int lo'
 int n, x, y, lo, mid, hi=300000, cnt[300005];
              ^~
luk.cpp:52:14: note: 'long long int lo' previously declared here
 int n, x, y, lo, mid, hi=300000;
              ^~
luk.cpp:100:18: error: redefinition of 'long long int mid'
 int n, x, y, lo, mid, hi=300000, cnt[300005];
                  ^~~
luk.cpp:52:18: note: 'long long int mid' previously declared here
 int n, x, y, lo, mid, hi=300000;
                  ^~~
luk.cpp:100:23: error: redefinition of 'long long int hi'
 int n, x, y, lo, mid, hi=300000, cnt[300005];
                       ^~
luk.cpp:52:23: note: 'long long int hi' previously defined here
 int n, x, y, lo, mid, hi=300000;
                       ^~
luk.cpp:101:21: error: redefinition of 'std::vector<long long int> v [300005]'
 vector<int> v[300005];
                     ^
luk.cpp:53:13: note: 'std::vector<long long int> v [300005]' previously declared here
 vector<int> v[300005];
             ^
luk.cpp: In function 'bool dfs(long long int, long long int, long long int)':
luk.cpp:102:6: error: redefinition of 'bool dfs(long long int, long long int, long long int)'
 bool dfs(int N, int D, int P){
      ^~~
luk.cpp:54:6: note: 'bool dfs(long long int, long long int, long long int)' previously defined here
 bool dfs(int N, ll D, int P){
      ^~~
luk.cpp:87:34: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
 #define fox(k, x) for (int k=0; k<x; ++k)
luk.cpp:103:9:
     fox(l, v[N].size()){
         ~~~~~~~~~~~~~~            
luk.cpp:103:5: note: in expansion of macro 'fox'
     fox(l, v[N].size()){
     ^~~
luk.cpp: In function 'int32_t main()':
luk.cpp:110:9: error: redefinition of 'int32_t main()'
 int32_t main(){
         ^~~~
luk.cpp:63:9: note: 'int32_t main()' previously defined here
 int32_t main(){
         ^~~~
luk.cpp:111:19: warning: format '%i' expects argument of type 'int*', but argument 2 has type 'long long int*' [-Wformat=]
     scanf("%i", &n);
                 ~~^
luk.cpp:113:29: warning: format '%i' expects argument of type 'int*', but argument 2 has type 'long long int*' [-Wformat=]
         scanf("%i%i", &x, &y);
                             ^
luk.cpp:113:29: warning: format '%i' expects argument of type 'int*', but argument 3 has type 'long long int*' [-Wformat=]
luk.cpp: In function 'int32_t main()':
luk.cpp:64:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%lli", &n);
     ~~~~~^~~~~~~~~~~~
luk.cpp:66:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%lli%lli", &x, &y);
         ~~~~~^~~~~~~~~~~~~~~~~~~~
luk.cpp: In function 'int32_t main()':
luk.cpp:111:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%i", &n);
     ~~~~~^~~~~~~~~~
luk.cpp:113:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%i%i", &x, &y);
         ~~~~~^~~~~~~~~~~~~~~~