This submission is migrated from previous version of oj.uz, which used different machine for grading. This submission may have different result if resubmitted.
#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 987654321987654321
#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<ld, ld> Pd;
typedef vector<int> Vi;
typedef vector<ll> Vll;
typedef vector<ld> 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[] = { -1,-2,1,-2,2,-1,2,1 }, ddy[] = { -2,-1,-2,1,-1,2,1,2 };
int a[200000],b[200000],t[200000],rev[200000];
Vi v[600000],q[600000];
int tree[1<<21];
int mx[600000];
void init(int node,int S,int E){
if(S==E){
tree[node]=mx[S];
return;
}
int L=node<<1,R=L|1,M=S+E>>1;
init(L,S,M);
init(R,M+1,E);
tree[node]=max(tree[L],tree[R]);
}
int find(int node,int S,int E,int i,int j){
if(i>E || j<S)return -1;
if(i<=S && j>=E)return tree[node];
int L=node<<1,R=L|1,M=S+E>>1;
return max(find(L,S,M,i,j),find(R,M+1,E,i,j));
}
int T[200005];
int n,m;
void upd(int i,int k){
i++;
while(i<=m){
T[i]+=k;
i+=(i&-i);
}
}
int sum(int i){
i++;
int c=0;
while(i>0){
c+=T[i];
i-=(i&-i);
}
return c;
}
int sum(int i,int j){
return sum(j)-sum(i-1);
}
int main(){
MEM_1(mx);
Vi vv;
scanf("%d%d",&n,&m);
fup(i,0,n-1,1){
scanf("%d%d",a+i,b+i);
vv.pb(a[i]);vv.pb(b[i]);
if(a[i]>b[i])swap(a[i],b[i]);
else rev[i]=1;
}
fup(i,0,m-1,1){
scanf("%d",t+i);
vv.pb(t[i]);
}
COMPRESS(vv);
int N=vv.size();
fup(i,0,n-1,1){
a[i]=lower_bound(ALL(vv),a[i])-vv.begin(),b[i]=lower_bound(ALL(vv),b[i])-vv.begin();
q[b[i]].pb(i);
}
fup(i,0,m-1,1){
t[i]=lower_bound(ALL(vv),t[i])-vv.begin();
v[t[i]].pb(i);
mx[t[i]]=i;
}
init(1,0,N-1);
ll ans=0;
fdn(k,N-1,0,1){
for(int x:v[k])upd(x,1);
for(int i:q[k]){
int r=find(1,0,N-1,a[i],b[i]-1);
int d;
if(r==-1)d=sum(0,m-1)+rev[i];
else d=sum(r+1,m-1);
if(d&1)ans+=vv[a[i]];
else ans+=vv[b[i]];
}
}
printf("%lld\n",ans);
}
Compilation message (stderr)
fortune_telling2.cpp: In function 'void init(int, int, int)':
fortune_telling2.cpp:52:25: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
52 | int L=node<<1,R=L|1,M=S+E>>1;
| ~^~
fortune_telling2.cpp: In function 'int find(int, int, int, int, int)':
fortune_telling2.cpp:60:25: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
60 | int L=node<<1,R=L|1,M=S+E>>1;
| ~^~
fortune_telling2.cpp: In function 'int main()':
fortune_telling2.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))
| ^
fortune_telling2.cpp:89:2: note: in expansion of macro 'fup'
89 | fup(i,0,n-1,1){
| ^~~
fortune_telling2.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))
| ^
fortune_telling2.cpp:95:2: note: in expansion of macro 'fup'
95 | fup(i,0,m-1,1){
| ^~~
fortune_telling2.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))
| ^
fortune_telling2.cpp:101:2: note: in expansion of macro 'fup'
101 | fup(i,0,n-1,1){
| ^~~
fortune_telling2.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))
| ^
fortune_telling2.cpp:105:2: note: in expansion of macro 'fup'
105 | fup(i,0,m-1,1){
| ^~~
fortune_telling2.cpp:11:30: warning: unnecessary parentheses in declaration of 'k' [-Wparentheses]
11 | #define fdn(i,a,b,c) for(int (i)=(a);(i)>=(b);(i)-=(c))
| ^
fortune_telling2.cpp:112:2: note: in expansion of macro 'fdn'
112 | fdn(k,N-1,0,1){
| ^~~
fortune_telling2.cpp:88:7: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
88 | scanf("%d%d",&n,&m);
| ~~~~~^~~~~~~~~~~~~~
fortune_telling2.cpp:90:8: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
90 | scanf("%d%d",a+i,b+i);
| ~~~~~^~~~~~~~~~~~~~~~
fortune_telling2.cpp:96:8: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
96 | scanf("%d",t+i);
| ~~~~~^~~~~~~~~~
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