#include <bits/stdc++.h>
#define mp make_pair
#define pb push_back
#define X first
#define Y second
#define y0 y12
#define y1 y22
#define INF 987654321
#define PI 3.141592653589793238462643383279502884
#define fup(i,a,b,c) for(int (i)=(a);(i)<=(b);(i)+=(c))
#define fdn(i,a,b,c) for(int (i)=(a);(i)>=(b);(i)-=(c))
#define MEM0(a) memset((a),0,sizeof(a))
#define MEM_1(a) memset((a),-1,sizeof(a))
#define ALL(a) a.begin(),a.end()
#define COMPRESS(a) sort(ALL(a));a.resize(unique(ALL(a))-a.begin())
#define SYNC ios_base::sync_with_stdio(false);cin.tie(0)
using namespace std;
typedef long long ll;
typedef long double ld;
typedef double db;
typedef unsigned int uint;
typedef unsigned long long ull;
typedef pair<int, int> Pi;
typedef pair<ll, ll> Pll;
typedef pair<db, db> Pd;
typedef vector<int> Vi;
typedef Vi Vll;
typedef vector<double> Vd;
typedef vector<Pi> VPi;
typedef vector<Pll> VPll;
typedef vector<Pd> VPd;
typedef tuple<int, int, int> iii;
typedef tuple<int,int,int,int> iiii;
typedef tuple<ll, ll, ll> LLL;
typedef vector<iii> Viii;
typedef vector<LLL> VLLL;
typedef complex<double> base;
const int MOD = 998244353;
ll POW(ll a, ll b, ll MMM=MOD) {ll ret=1; for(;b;b>>=1,a=(a*a)%MMM)if(b&1)ret=(ret*a)% MMM; return ret; }
int dx[] = { 0,1,0,-1,1,1,-1,-1 }, dy[] = { 1,0,-1,0,1,-1,1,-1 };
int ddx[]={2,2,-2,-2,1,1,-1,-1},ddy[]={1,-1,1,-1,2,-2,2,-2};
Vi v[200002];
int A[200002],B[200002];
int main() {
int n;
scanf("%d",&n);
fup(i,1,n,1)scanf("%d%d",A+i,B+i);
fup(i,1,n,1){
int x,y;
scanf("%d%d",&x,&y);
v[x].pb(y);
}
fup(i,1,n,1)reverse(ALL(v[i]));
int ans=n;
fup(i,1,n,1){
if(v[A[i]].empty())continue;
int t=v[A[i]].back();
if(B[i]<=t){
v[A[i]].pop_back();
ans--;
}
}
printf("%d\n",ans);
}
Compilation message
worst_reporter2.cpp: In function 'int main()':
worst_reporter2.cpp:10:30: warning: unnecessary parentheses in declaration of 'i' [-Wparentheses]
10 | #define fup(i,a,b,c) for(int (i)=(a);(i)<=(b);(i)+=(c))
| ^
worst_reporter2.cpp:48:2: note: in expansion of macro 'fup'
48 | fup(i,1,n,1)scanf("%d%d",A+i,B+i);
| ^~~
worst_reporter2.cpp:10:30: warning: unnecessary parentheses in declaration of 'i' [-Wparentheses]
10 | #define fup(i,a,b,c) for(int (i)=(a);(i)<=(b);(i)+=(c))
| ^
worst_reporter2.cpp:49:2: note: in expansion of macro 'fup'
49 | fup(i,1,n,1){
| ^~~
worst_reporter2.cpp:10:30: warning: unnecessary parentheses in declaration of 'i' [-Wparentheses]
10 | #define fup(i,a,b,c) for(int (i)=(a);(i)<=(b);(i)+=(c))
| ^
worst_reporter2.cpp:54:2: note: in expansion of macro 'fup'
54 | fup(i,1,n,1)reverse(ALL(v[i]));
| ^~~
worst_reporter2.cpp:10:30: warning: unnecessary parentheses in declaration of 'i' [-Wparentheses]
10 | #define fup(i,a,b,c) for(int (i)=(a);(i)<=(b);(i)+=(c))
| ^
worst_reporter2.cpp:56:2: note: in expansion of macro 'fup'
56 | fup(i,1,n,1){
| ^~~
worst_reporter2.cpp:47:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
47 | scanf("%d",&n);
| ~~~~~^~~~~~~~~
worst_reporter2.cpp:48:19: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
48 | fup(i,1,n,1)scanf("%d%d",A+i,B+i);
| ~~~~~^~~~~~~~~~~~~~~~
worst_reporter2.cpp:51:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
51 | scanf("%d%d",&x,&y);
| ~~~~~^~~~~~~~~~~~~~
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
3 ms |
4972 KB |
Output isn't correct |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
3 ms |
4972 KB |
Output isn't correct |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
3 ms |
4972 KB |
Output isn't correct |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
3 ms |
4972 KB |
Output isn't correct |
| 2 |
Halted |
0 ms |
0 KB |
- |
