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QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#573676 | #9313. Make Max | nine | WA | 100ms | 5616kb | C++17 | 1.4kb | 2024-09-18 19:38:09 | 2024-09-18 19:38:10 |
Judging History
answer
#include <iostream>
#include <algorithm>
#include <cstring>
#include <stack>
using namespace std;
const int mxn=2e5+5, inf=0x3f3f3f3f;
int t, n;
int a[mxn];
struct E{
int pre;//表示它的前一个数的值
int cnt;//表示它的个数
int num;//表示它的值
}e[mxn];
int main()
{
cin>>t;
while(t--){
cin>>n;
for(int i=1;i<=n;i++) cin>>a[i];
stack<E>s;
s.push({inf,0,inf});
int k=1, sum=0;
while(k<=n){
E &t=s.top();
if(a[k]<t.num){
s.push({t.num,1,a[k]});
k++;
}
else if(a[k]==t.num){
t.cnt++;
k++;
}
else{
if(t.pre>a[k]){//t.pre t.num a[k]
//t.num<a[k]<t.pre 将t.num修改为a[k]
sum+=t.cnt;
t.cnt+=1;
t.num=a[k];
k++;
}
else if(a[k]>=t.pre){//t.pre t.num a[k]
//t.num<t.pre<a[k] 将t推出栈,t.pre的数据修改
sum+=t.cnt;
s.pop();
s.top().cnt+=t.cnt;
//不一定加入a[k],因为左边可能还会出现这种情况
}
}
}
cout<<sum<<'\n';
}
return 0;
}
Details
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Test #1:
score: 100
Accepted
time: 1ms
memory: 5616kb
input:
4 2 1 2 2 2 2 7 1 1 1 2 2 2 2 3 1 2 3
output:
1 0 3 3
result:
ok 4 number(s): "1 0 3 3"
Test #2:
score: -100
Wrong Answer
time: 100ms
memory: 4404kb
input:
2 198018 875421126 585870339 471894633 383529988 625397685 944061047 704695631 105113224 459022561 760848605 980735314 847376362 980571959 329939331 644635272 326439858 752879510 837384394 175179068 182094523 397239381 1199016 185143405 279638454 252374970 822030887 860312140 137248166 993229443 164...
output:
3878282 3690277
result:
wrong answer 1st numbers differ - expected: '4084978', found: '3878282'