QOJ.ac
QOJ
ID | 题目 | 提交者 | 结果 | 用时 | 内存 | 语言 | 文件大小 | 提交时间 | 测评时间 |
---|---|---|---|---|---|---|---|---|---|
#219342 | #5669. Traveling in Jade City | JenniferLing# | WA | 860ms | 28584kb | C++17 | 5.7kb | 2023-10-19 12:44:49 | 2023-10-19 12:44:49 |
Judging History
answer
#include <bits/stdc++.h>
using namespace std;
const int INF=1e9;
#define N 2000006
int seg[N*4], arr[N];
int n, k, m, q, segn;
void build(int ind, int l, int r){
if(l==r){
seg[ind] = arr[l];
return;
}
int mid = (l+r)>>1;
build(ind*2, l, mid);
build(ind*2+1, mid+1, r);
seg[ind] = seg[ind*2]+seg[ind*2+1];
}
int query(int ind, int l, int r, int ql, int qr){
if(r<ql || qr<l || r<l){
return 0;
}
if(ql<=l && r<=qr){
return seg[ind];
}
int mid = (l+r)>>1;
return min(query(ind*2, l, mid, ql, qr)+query(ind*2+1, mid+1, r, ql, qr), INF);
}
void modify(int ind, int l, int r, int pos){
if(l==r){
if(seg[ind]==INF){
seg[ind] = arr[l];
}
else{
seg[ind] = INF;
}
return;
}
int mid = (l+r)>>1;
if(pos<=mid)
modify(ind*2, l, mid, pos);
else{
modify(ind*2+1, mid+1, r, pos);
}
seg[ind] = min(seg[ind*2]+seg[ind*2+1], INF);
}
void solve() {
cin >> n >> k >> m >> q;
segn = n+m+1;
for(int i=1; i<=n; ++i){
cin >> arr[i];
}
for(int i=n+1; i<=n+1+m; ++i){
cin >> arr[i];
}
build(1, 1, segn);
while(q--){
char typ; cin >> typ;
if(typ=='q'){
int a, b; cin >> a >> b;
if(b<a){
swap(a, b);
}
if(a==b){
cout << "0\n";
}
else{
//a<b
int tmpans;
if(a>k && b<=n){ // 1
tmpans = min(query(1, 1, segn, a, b-1), min(query(1, 1, segn, 1, a-1)+query(1, 1, segn, b, n), query(1, 1, segn, b, n+m+1)+query(1, 1, segn, k, a-1)));
}
else if(b<k){ // 2
tmpans = min(query(1, 1, segn, a, b-1), min(query(1, 1, segn, 1, a-1)+query(1, 1, segn, b, n), query(1, 1, segn, b, k-1)+query(1, 1, segn, 1, a-1)+query(1, 1, segn, n+1, n+m+1)));
}
else if(a<k && (k<b && b<=n)){ // 3
int ans1 = query(1, 1, segn, 1, a-1)+query(1, 1, segn, b, n);
int ans2 = query(1, 1, segn, a, b-1);
int ans3 = query(1, 1, segn, a, k-1)+query(1, 1, segn, b, n+1+m);
int ans4 = query(1, 1, segn, 1, a-1)+query(1, 1, segn, n+1, n+m+1)+query(1, 1, segn, k, b-1);
tmpans = min(ans1, min(ans2, min(ans3, ans4)));
}
else if(a==1 && b==k){ // 4
int ans1 = query(1, 1, segn, 1, k-1);
int ans2 = query(1, 1, segn, k, n);
int ans3 = query(1, 1, segn, n+1, n+1+m);
tmpans = min(ans1, min(ans2, ans3));
}
else if(a==1 && b<k){ // 5
int ans1 = query(1, 1, segn, a, b-1);
int ans2 = query(1, 1, segn, b, n);
int ans3 = query(1, 1, segn, b, k-1)+query(1, 1, segn, n+1 ,n+m+1);
tmpans = min(ans1, min(ans2, ans3));
}
else if(a==1 && (k<b && b<=n)){ // 6
int ans1 = query(1, 1, segn, b, n);
int ans2 = query(1, 1, segn, a, b-1);
int ans3 = query(1, 1, segn, k, b-1)+query(1, 1, segn, n+1, n+1+m);
tmpans = min(ans1, min(ans2, ans3));
}
else if(a<k && b==k){
int ans1 = query(1, 1, segn, a, b-1);
int ans2 = query(1,1 , segn, 1, a-1)+query(1, 1, segn, b, n);
int ans3 = query(1, 1, segn, 1, a-1)+query(1, 1, segn, n+1, n+1+m);
tmpans = min(ans1, min(ans2, ans3));
}
else if(a==k && b<=n){ // 8
int ans1 = query(1, 1, segn, a, b-1);
int ans2 = query(1, 1, segn, 1, a-1)+query(1, 1, segn, b, n);
int ans3 = query(1, 1, segn, b, n)+query(1, 1, segn, n+1, n+m+1);
tmpans = min(ans1, min(ans2, ans3));
}
else if((k<a && a<=n) && n<b){ // 9
int ans1 = query(1, 1, segn, a, n)+query(1, 1, segn, n+1, b);
int ans2 = query(1, 1, segn, k, a-1)+query(1, 1, segn, b+1, n+1+m);
int ans3 = query(1, 1, segn, 1, k-1)+query(1, 1, segn, a, n)+query(1, 1, segn, b+1, n+1+m);
int ans4 = query(1, 1, segn, 1, a)+query(1, 1, segn, n+1, b);
tmpans = min(ans1, min(ans2, min(ans3, ans4)));
}
else if(a<k && n<b){
int ans1 = query(1, 1, segn, 1, a-1)+query(1, 1, segn, n+1, b);
int ans2 = query(1, 1, segn, a, k-1)+query(1, 1, segn, b+1, n+1+m);
int ans3 = query(1, 1, segn, 1, a-1)+query(1, 1, segn, k, n)+query(1, 1, segn, b+1, n+1+m);
int ans4 = query(1, 1, segn, a, b);
tmpans = min({ans1, ans2, ans3, ans4});
}
else if(a==1 && n<b){
int ans1 = query(1, 1, segn, n+1, b);
int ans2 = query(1, 1, segn, k, n)+query(1, 1, segn, b+1, n+1+m);
int ans3 = query(1, 1, segn, 1, k-1)+query(1, 1, segn, b+1, n+m+1);
tmpans = min({ans1, ans2, ans3});
}
else if(a==k && n<b){// 12
int ans1 = query(1, 1, segn, b+1, n+1+m);
int ans2 = query(1, 1, segn, n+1, b)+query(1, 1, segn, 1, k-1);
int ans3 = query(1, 1, segn, n+1, b)+query(1, 1, segn, k ,n);
tmpans = min({ans1, ans2, ans3});
}
else if(n<a){
int ans1 = query(1, 1, segn, a+1, b);
int ans2 = query(1, 1, segn, 1, k-1)+query(1, 1, segn, n+1, a)+query(1, 1, segn, b+1, n+1+m);
int ans3 = query(1, 1, segn, k, a)+query(1, 1, segn, b+1, n+1+m);
tmpans = min({ans1, ans2, ans3});
}
else {
assert(false);
}
if(tmpans>=INF){
cout << "impossible\n";
}
else{
cout << tmpans << '\n';
}
}
}
else if(typ=='x'){
int tmp; cin >> tmp; tmp+=n+1;
modify(1, 1, segn, tmp);
}
else{// c
int tmp; cin >> tmp;
modify(1, 1, segn, tmp);
}
}
}
signed main() {
ios::sync_with_stdio(0);
cin.tie(0);
int T = 1;
// cin >> T;
while (T--) solve();
}
详细
Test #1:
score: 100
Accepted
time: 1ms
memory: 5672kb
input:
4 3 1 9 2 3 8 4 1 1 q 3 4 x 0 q 3 4 c 3 q 3 4 c 1 q 3 4 x 0 q 3 4
output:
6 8 9 impossible 6
result:
ok 5 lines
Test #2:
score: 0
Accepted
time: 1ms
memory: 5756kb
input:
4 3 1 9 2 3 8 4 1 1 q 3 4 x 0 q 3 4 c 3 q 3 4 c 1 q 3 4 x 0 q 3 4
output:
6 8 9 impossible 6
result:
ok 5 lines
Test #3:
score: -100
Wrong Answer
time: 860ms
memory: 28584kb
input:
1000000 999999 1000000 1000000 200 200 200 200 200 200 200 200 200 200 200 200 200 200 200 200 200 200 200 200 200 200 200 200 200 200 200 200 200 200 200 200 200 200 200 200 200 200 200 200 200 200 200 200 200 200 200 200 200 200 200 200 200 200 200 200 200 200 200 200 200 200 200 200 200 200 200 2...
output:
177406400 122264600 70328400 impossible -2094967096 impossible -2094967096 impossible impossible impossible impossible impossible 29295200 impossible 22163200 impossible impossible impossible 11422200 impossible 62579800 impossible 35339400 -2094967096 20157200 impossible impossible impossible -2094...
result:
wrong answer 5th lines differ - expected: 'impossible', found: '-2094967096'