#include <bits/stdc++.h>
using namespace std;
//#ifndef EVAL
//#include "grader.h"
//#endif
#define Baytoro_MayrambekovOrz void solve()
#define ios ios::sync_with_stdio(false); cin.tie(NULL);
#define pb push_back
#define all(x) x.begin(), x.end()
#define rall(x) x.rbegin(), x.rend()
#define fr first
#define sc second
#define int long long
#define endl '\n'
#define yes cout<<"YES\n";
#define no cout<<"NO\n";
void fopn(string name){
freopen((name+".in").c_str(),"r",stdin);
freopen((name+".out").c_str(),"w",stdout);
}
int binpow(int a,int n){
if(n==0)
return 1;
if(n%2==1)
return binpow(a, n-1)*a;
else{
int b=binpow(a, n/2);
return b*b;
}
}
bool cmp(pair<int,int> a, pair<int,int> b){
return a.sc<b.sc;
}
int a,b,c,n,m,i,j,k,x,y,cnt=0,sum=0,res=0;
Baytoro_MayrambekovOrz{
cin>>n>>m;
vector<pair<int,int>> vec(n+1);
vector<int> r(m+1);
for(i=1;i<=n;i++)
cin>>vec[i].fr>>vec[i].sc;
for(i=1;i<=m;i++)
cin>>r[i];
sort(all(vec),cmp);
id--;
sort(all(r));
int id=m,i=n;
res=0;
for(i=n;i>0 && id>0;i--){
if(r[id]<vec[i].fr)
continue;
id--;
res++;
}
cout<<res<<endl;
}
main(){
ios;
int T=1;
//cin>>T;
while(T--){
solve();
}
}
Compilation message
joi2019_ho_t2.cpp: In function 'void solve()':
joi2019_ho_t2.cpp:44:3: error: 'id' was not declared in this scope; did you mean 'i'?
44 | id--;
| ^~
| i
joi2019_ho_t2.cpp: At global scope:
joi2019_ho_t2.cpp:56:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
56 | main(){
| ^~~~
joi2019_ho_t2.cpp: In function 'void fopn(std::string)':
joi2019_ho_t2.cpp:18:9: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
18 | freopen((name+".in").c_str(),"r",stdin);
| ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
joi2019_ho_t2.cpp:19:9: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
19 | freopen((name+".out").c_str(),"w",stdout);
| ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
