Submission #394582

#	Time	Username	Problem	Language	Result	Execution time	Memory
394582		Sugardorj	Swapping Cities (APIO20_swap)	C++14	Compilation error	0 ms	0 KiB

swap

#include "swap.h"
#include <bits/stdc++.h>
using namespace std;
int  i,j,s,t;
int a[261523],b[234567],l,r,tt,k,y,z,n,m,x,MAXN=123456;
vector<int>te,so, hursh[212334],an;

struct node {
    int endP[2], par, size, val;//*, deed oroi, hemjee, utga
} comp[MAXN];

int wpar[MAXN], depth[MAXN];//deed oroitoigoo holbogdoh urt, gun
vector <int> adj[MAXN];//hurshuud

int root(int u) {
    while (comp[u].par >= 0) u = comp[u].par;
    return u;//odoogoor hamgiin deed undes
}

bool join(int u, int v, int w) {//u, v, oroinuudiig w utgaar holboh
    int x = root(u), y = root(v);//deed undsuudiig ni oloh
    if (x == y) {//holbogdson bol
        if (comp[x].val < 0) comp[x].val = w;//x ni utga avaagui bol w utgiig olgoh
        return false;//
    }
    if (comp[x].size < comp[y].size) {
        swap(x, y); swap(u, v);//ali olon oroitoi olonlogiig i u bolgoh
    }
    comp[x].size += comp[y].size; comp[y].par = x;//negtgeh, y-iin deed oroig x bolgoh 
    wpar[y] = w; adj[x].push_back(y);//deed oroitoigoo holbogdoh urt w, xiin hursh y
    if (comp[x].val < 0 && comp[y].val < 0 &&
    (u == comp[x].endP[0] || u == comp[x].endP[1]) &&
    (v == comp[y].endP[0] || v == comp[y].endP[1])) {
        if (u == comp[x].endP[0])
            comp[x].endP[0] = comp[x].endP[1];
        if (v == comp[y].endP[0])
            comp[x].endP[1] = comp[y].endP[1];
        else comp[x].endP[1] = comp[y].endP[0];
    } else if (comp[x].val < 0) comp[x].val = w;
    return true;
}
void DFS(int u) {
    for (int v : adj[u]) {
        depth[v] = depth[u] + 1; DFS(v);//guniig ni dfs ashiglaj oloh
    }
}

void init(int N, int M, vector <int> U, vector <int> V, vector <int> W) {
    vector <int> sorted(M);
    for (i = 0; i <M; i ++)
        sorted[i]=i;
    sort(sorted.begin(), sorted.end(),[&](int i, int j) {return W[i] < W[j];});
    
    for (int i = 0; i < N; i++) {
        comp[i].endP[0] = comp[i].endP[1] = i;
        comp[i].par = -1; comp[i].size = 1;
        comp[i].val = -1;
    }
    for (int i : sorted) join(U[i], V[i], W[i]);
    
    for (int i = 0; i < N; i++)
        if (comp[i].par < 0) DFS(i);
}

int getMinimumFuelCapacity(int u, int v) {
    if (root(u) != root(v)) return -1;
    int res = 0;
    while (u != v) {
        if (depth[u] < depth[v]) swap(u, v);
        res = max(res, wpar[u]); u = comp[u].par;
    }
    while (u >= 0 && comp[u].val < 0) {
        res = max(res, wpar[u]); u = comp[u].par;
    }
    if (u < 0) return -1;
    return max(res, comp[u].val);
}

Compilation message (stderr)

swap.cpp:10:12: error: array bound is not an integer constant before ']' token
   10 | } comp[MAXN];
      |            ^
swap.cpp:12:14: error: array bound is not an integer constant before ']' token
   12 | int wpar[MAXN], depth[MAXN];//deed oroitoigoo holbogdoh urt, gun
      |              ^
swap.cpp:12:27: error: array bound is not an integer constant before ']' token
   12 | int wpar[MAXN], depth[MAXN];//deed oroitoigoo holbogdoh urt, gun
      |                           ^
swap.cpp:13:22: error: array bound is not an integer constant before ']' token
   13 | vector <int> adj[MAXN];//hurshuud
      |                      ^
swap.cpp: In function 'int root(int)':
swap.cpp:16:12: error: 'comp' was not declared in this scope
   16 |     while (comp[u].par >= 0) u = comp[u].par;
      |            ^~~~
swap.cpp: In function 'bool join(int, int, int)':
swap.cpp:23:13: error: 'comp' was not declared in this scope
   23 |         if (comp[x].val < 0) comp[x].val = w;//x ni utga avaagui bol w utgiig olgoh
      |             ^~~~
swap.cpp:26:9: error: 'comp' was not declared in this scope
   26 |     if (comp[x].size < comp[y].size) {
      |         ^~~~
swap.cpp:29:5: error: 'comp' was not declared in this scope
   29 |     comp[x].size += comp[y].size; comp[y].par = x;//negtgeh, y-iin deed oroig x bolgoh
      |     ^~~~
swap.cpp:30:5: error: 'wpar' was not declared in this scope
   30 |     wpar[y] = w; adj[x].push_back(y);//deed oroitoigoo holbogdoh urt w, xiin hursh y
      |     ^~~~
swap.cpp:30:18: error: 'adj' was not declared in this scope
   30 |     wpar[y] = w; adj[x].push_back(y);//deed oroitoigoo holbogdoh urt w, xiin hursh y
      |                  ^~~
swap.cpp: In function 'void DFS(int)':
swap.cpp:43:18: error: 'adj' was not declared in this scope
   43 |     for (int v : adj[u]) {
      |                  ^~~
swap.cpp:44:9: error: 'depth' was not declared in this scope
   44 |         depth[v] = depth[u] + 1; DFS(v);//guniig ni dfs ashiglaj oloh
      |         ^~~~~
swap.cpp: In function 'void init(int, int, std::vector<int>, std::vector<int>, std::vector<int>)':
swap.cpp:55:9: error: 'comp' was not declared in this scope
   55 |         comp[i].endP[0] = comp[i].endP[1] = i;
      |         ^~~~
swap.cpp:62:13: error: 'comp' was not declared in this scope
   62 |         if (comp[i].par < 0) DFS(i);
      |             ^~~~
swap.cpp: In function 'int getMinimumFuelCapacity(int, int)':
swap.cpp:69:13: error: 'depth' was not declared in this scope
   69 |         if (depth[u] < depth[v]) swap(u, v);
      |             ^~~~~
swap.cpp:70:24: error: 'wpar' was not declared in this scope
   70 |         res = max(res, wpar[u]); u = comp[u].par;
      |                        ^~~~
swap.cpp:70:38: error: 'comp' was not declared in this scope
   70 |         res = max(res, wpar[u]); u = comp[u].par;
      |                                      ^~~~
swap.cpp:72:22: error: 'comp' was not declared in this scope
   72 |     while (u >= 0 && comp[u].val < 0) {
      |                      ^~~~
swap.cpp:73:24: error: 'wpar' was not declared in this scope
   73 |         res = max(res, wpar[u]); u = comp[u].par;
      |                        ^~~~
swap.cpp:76:21: error: 'comp' was not declared in this scope
   76 |     return max(res, comp[u].val);
      |                     ^~~~