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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 |
---|---|---|---|---|---|---|---|---|---|
#187415 | #6130. Plants vs. Zombies | microwave173 | WA | 131ms | 4724kb | C++14 | 1.6kb | 2023-09-24 17:05:35 | 2023-09-24 17:05:35 |
Judging History
answer
#include<iostream>
using namespace std;
int n, t;
long long m;
int a[100005];
void init(){
}
bool check(long long int x){
int p = 0;
long long int stp = 0;
long long int val[100005];
for(int i = 0;i < n;i++){
val[i] = 0;
}
while(1){
if(stp > m){ //大了
return false;
}
if(p >= n){ //小了或等于
return true;
}
long long int d = x - val[p];
if(d < 0) d = 0;
if(d == 0){
stp += 1;
p++;
continue;
}
long long int water_tim = d / a[p];
if(d % a[p] > 0) water_tim++;
val[p] += water_tim * a[p];
val[p + 1] += (water_tim - 1) * a[p + 1];
stp += 2 * water_tim - 1;
p++;
//cout << d << ' ' << stp << endl;
}
}
void solve(){
long long int l = 0;
long long int r = 1e17;
long long int mid;
while(r - l > 1){
//cout << l << ' ' << r << endl;
mid = (l + r)/2;
bool flag = check(mid);
if(flag == false){
r = mid - 1;
}
else{
l = mid;
}
}
//cout << l << ' ' << r << endl;
bool flag_l = check(l);
bool flag_r = check(r);
if(flag_l && flag_r){
cout << r << endl;
}
else if(flag_l && !flag_r){
cout << l << endl;
}
}
int main(){
cin >> t;
while(t--){
cin >> n >> m;
for(int i = 0;i < n;i++){
cin >> a[i];
}
solve();
}
return 0;
}
详细
Test #1:
score: 100
Accepted
time: 1ms
memory: 4408kb
input:
2 4 8 3 2 6 6 3 9 10 10 1
output:
6 4
result:
ok 2 number(s): "6 4"
Test #2:
score: -100
Wrong Answer
time: 131ms
memory: 4724kb
input:
116 4 0 3 2 6 6 4 1 3 2 6 6 10 19 10 2 8 4 2 4 9 3 3 3 4 8 3 9 3 6 2 19 2 10 11 15 3 1 1 4 3 7 10 8 6 7 10 10 14 8 7 1 1 10 9 2 8 10 7 2 13 2 3 10 10 8 1 6 6 9 4 7 1 8 8 7 14 6 7 4 5 3 1 3 11 6 8 1 10 9 7 2 6 6 1 3 9 4 10 6 1 3 8 7 7 10 6 2 10 4 7 2 5 11 9 10 5 9 2 9 1 2 4 8 6 2 8 8 1 6 4 5 7 2 9 8 ...
output:
4 6 18 3 2 12 1 4 4 2 6 2 24 3 30 10 2 3 2 6 1 6 24 28 1 3 3 4 10 6 4 1 5 1 7 30 2 16 8 30 2 25 4 2 2 2 5 2 5 4 4 28 21 3 2 4 14 4 6 1 5 12 3 8 4 10 12 5 6 1 6 9 725 17 132 676 588 110 163 5910826 1000000000000 16561021906
result:
wrong answer 1st numbers differ - expected: '0', found: '4'