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90pts #10 WA 求调
P11232[CSP-S 2024] 超速检测参与者 2已保存回复 4
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- 此快照首次捕获于
- 2024/11/02 21:39 去年
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CPP
#include <bits/stdc++.h>
using namespace std;
struct car {
long long d, v, a;
} cr[100005];
struct query {
long long l, r;
bool operator <(const query &b){
if (r != b.r) return r < b.r;
return l < b.l;
}
} q[100005];
long long T, n, m, L, V, p[100005], z, ans;
long long findl(long long c, long long y){
long long mx = cr[c].v * cr[c].v + 2 * cr[c].a * (p[m] - cr[c].d);
if (mx <= V * V) return -1;
long long l = y, r = m + 1;
while (l + 1 < r){
long long mid = l + r >> 1;
long long f = cr[c].v * cr[c].v + 2 * cr[c].a * (p[mid] - cr[c].d);
if (f <= V * V) l = mid;
else r = mid;
}
return l;
}
long long findr(long long c, long long y){
long long mx = cr[c].v * cr[c].v + 2 * cr[c].a * (p[y] - cr[c].d);
if (mx <= V * V) return -1;
long long l = y, r = m + 1;
while (l + 1 < r){
long long mid = l + r >> 1;
long long f = cr[c].v * cr[c].v + 2 * cr[c].a * (p[mid] - cr[c].d);
if (f > V * V) l = mid;
else r = mid;
}
if (cr[c].v * cr[c].v + 2 * cr[c].a * (p[l] - cr[c].d) > V * V) return l;
return -1;
}
int main(){
ios::sync_with_stdio(0); cin.tie(0); cout.tie(0);
cin >> T;
while (T--){
cin >> n >> m >> L >> V; z = 0;
for (int i = 1; i <= n; i++){
cin >> cr[i].d >> cr[i].v >> cr[i].a;
}
for (int i = 1; i <= m; i++){
cin >> p[i];
}
p[m+1] = 1e9;
for (int i = 1; i <= n; i++){
long long k = lower_bound(p+1, p+m+2, cr[i].d) - p;
if (k > m) continue;
if (cr[i].a == 0){
if (cr[i].v > V){
q[++z].l = k;
q[z].r = m;
}
}
else if (cr[i].a > 0){
long long tmp = findl(i, k);
if (tmp == -1) continue;
q[++z].l = tmp;
q[z].r = m;
}
else {
long long tmp = findr(i, k);
if (tmp == -1) continue;
q[++z].l = k;
q[z].r = tmp;
}
}
cout << z << " ";
sort(q+1, q+z+1); ans = 0;
long long lst = 0;
for (int i = 1; i <= z; i++){
if (q[i].l <= lst && lst <= q[i].r) continue;
ans++; lst = q[i].r;
}
cout << m - ans << endl;
}
}
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