#include<bits/stdc++.h>
#define STIZE(x) fprintf(stderr, "STIZE%d\n", x);
#define PRINT(x) fprintf(stderr, "%s = %d\n", #x, x);
#define NL(x) printf("%c", " \n"[(x)]);
#define lld long long
#define pii pair<int,int>
#define pb push_back
#define fi first
#define se second
#define mid (l+r)/2
#define endl '\n'
#define all(a) begin(a),end(a)
#define sz(a) int((a).size())
#define LINF 1000000000000000LL
#define INF 1000000000
#define EPS 1e-9
using namespace std;
#define MAXN 200010
lld N, K, a[MAXN], b[MAXN], t[MAXN];
lld seg[4*MAXN];
vector<pii> T, B;
void init(int node, int l, int r) {
if(l == r) seg[node] = T[l].se;
else {
init(2*node, l, mid); init(2*node+1, mid+1, r);
seg[node] = max(seg[2*node], seg[2*node+1]);
}
}
lld query(int node, int l, int r, int L, int R) {
if(r < l || R < L || r < L || R < l) return 0;
if(L <= l && r <= R) return seg[node];
return max(query(2*node, l, mid, L, R), query(2*node+1, mid+1, r, L, R));
}
lld bit[MAXN];
void update(int idx, lld val) {
for( ; idx < MAXN; idx += idx&-idx) bit[idx] += val;
}
lld query(int idx) {
lld rez = 0;
for( ; idx ; idx -= idx&-idx) rez += bit[idx];
return rez;
}
int bsL(int key) {
auto l = lower_bound(all(T), make_pair(key, -INF));
return (l == T.end() ? K+1:*l);
}
int bsR(int key) {
auto r = upper_bound(all(T), make_pair(key, -INF)); if(r != T.begin()) r--;
return (l == T.begin() ? 0:*r);
}
int sred[MAXN];
int main() {
ios::sync_with_stdio(false); cin.tie(0); cout.tie(0); cerr.tie(0);
cin >> N >> K;
for(int i = 1; i <= N; i++) cin >> a[i] >> b[i];
for(int i = 1; i <= K; i++) cin >> t[i];
T.pb({-INF, -INF}); B.pb({-INF, -INF});
for(int i = 1; i <= N; i++) B.pb({max(a[i], b[i]), i});
for(int i = 1; i <= K; i++) T.pb({t[i], i});
sort(all(T));
sort(all(B));
init(1, 1, K);
lld rez = 0;
for(int i = 1; i <= N; i++) {
int L = bsL(min(a[i], b[i])), R = bsR(max(a[i], b[i])-1);
sred[i] = query(1, 1, K, L, R);
}
int cb = N, ct = K;
while(cb > 0 || ct > 0) {
int mode;
if(cb == 0) mode = 0;
else if(ct == 0) mode = 1;
else mode = (B[cb] > T[ct]);
if(mode == 0) {
update(T[ct].se, +1);
ct--;
} else {
lld vece = (query(MAXN-1)-query(sred[B[cb].se]))%2;
int idx = B[cb].se;
if(sred[idx] == 0) {
if(vece == 1) rez += b[idx];
else rez += a[idx];
} else {
if(vece == 1) rez += min(a[idx], b[idx]);
else rez += max(a[idx], b[idx]);
}
cb--;
}
}
cout << rez << endl;
}
Compilation message
fortune_telling2.cpp: In function 'int bsL(int)':
fortune_telling2.cpp:45:26: error: operands to ?: have different types 'long long int' and 'std::pair<int, int>'
return (l == T.end() ? K+1:*l);
~~~~~~~~~~~~~^~~~~~~~
fortune_telling2.cpp: In function 'int bsR(int)':
fortune_telling2.cpp:49:13: error: 'l' was not declared in this scope
return (l == T.begin() ? 0:*r);
^
