Submission #492288

#	Time	Username	Problem	Language	Result	Execution time	Memory
492288		ValiAntonie	The Potion of Great Power (CEOI20_potion)	C++17	Compilation error	0 ms	0 KiB

potion

#include <bits/stdc++.h>

using namespace std;

struct querry{
    int prim,doi,zi,indice;
}r[50005];

bool cmp(querry E, querry F){
    return E.zi < F.zi;
}


int n,d,u,q,alt[100005],i,j,i2,j2,result,f[50005];
pair <int,int> rel[200005];
set <int> s[10000000];
set<int>::iterator itr;
int main()
{
ios_base::sync_with_stdio(false);
cin.tie(NULL);
cin>>n>>d>>u>>q;
for(i=0;i<n;i++){
    cin>>alt[i];
}
for(i=1;i<=u;i++){
    cin>>rel[i].first>>rel[i].second;
}
for(i=1;i<=q;i++){
    cin>>r[i].prim>>r[i].doi>>r[i].zi;
    r[i].indice = i;
}
sort(r+1,r+q+1,cmp);
for(i=1;i<=q;i++){
   for(j=r[i-1].zi+1;j<=r[i].zi;j++){
        if(s[rel[j].first].count(alt[rel[j].second]) == 0){
            s[rel[j].first].insert(alt[rel[j].second]);
        }
        else{
            s[rel[j].first].erase(alt[rel[j].second]);
        }
        if(s[rel[j].second].count(alt[rel[j].first]) == 0){
            s[rel[j].second].insert(alt[rel[j].first]);
        }
        else{
            s[rel[j].second].erase(alt[rel[j].first]);
        }
   }
    vector<int> a(s[r[i].prim].begin(), s[r[i].prim].end());
    vector<int> b(s[r[i].doi].begin(), s[r[i].doi].end());
    result = 1000000000;
    i2 = 0;
    j2 = 0;
    while(i2 < a.size() && j2 < b.size()){
        if(abs(a[i2] - b[j2]) < result)
            result = abs(a[i2] - b[j2]);
        if(a[i2] < a[j2])
            i2++;
        else
            j2++;
    }
    f[r[i].indice] = result;
}
for(i=1;i<=q;i++){
    cout << f[i] << '\n';
    cout.flush();
}
    return 0;
}

Compilation message (stderr)

potion.cpp: In function 'int main()':
potion.cpp:54:14: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   54 |     while(i2 < a.size() && j2 < b.size()){
      |           ~~~^~~~~~~~~~
potion.cpp:54:31: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   54 |     while(i2 < a.size() && j2 < b.size()){
      |                            ~~~^~~~~~~~~~
/usr/bin/ld: /tmp/ccmJQJ6N.o: in function `main':
grader.cpp:(.text.startup+0x0): multiple definition of `main'; /tmp/ccox7mUO.o:potion.cpp:(.text.startup+0x0): first defined here
/usr/bin/ld: /tmp/ccmJQJ6N.o: in function `main':
grader.cpp:(.text.startup+0xec): undefined reference to `init(int, int, int*)'
/usr/bin/ld: grader.cpp:(.text.startup+0x184): undefined reference to `curseChanges(int, int*, int*)'
/usr/bin/ld: grader.cpp:(.text.startup+0x1d9): undefined reference to `question(int, int, int)'
collect2: error: ld returned 1 exit status