이 제출은 이전 버전의 oj.uz에서 채점하였습니다. 현재는 제출 당시와는 다른 서버에서 채점을 하기 때문에, 다시 제출하면 결과가 달라질 수도 있습니다.
#pragma GCC optimize("O3")
#pragma GCC optimize("Ofast")
#pragma GCC optimize("unroll-loops")
#pragma GCC target("sse,sse2,sse3,ssse3,sse4,avx,avx2")
#include <bits/stdc++.h>
#define MEM 1111111
#define sanic ios_base::sync_with_stdio(0)
#define x first
#define y second
#define pf push_front
#define pb push_back
#define all(v) v.begin(), v.end()
#define sz size()
using namespace std;
typedef long long ll;
typedef pair<ll, ll> pi;
const ll INF = 1e17+7;
const ll MOD = 998244353;
ll gcd(ll a, ll b){
if(a%b) return gcd(b, a%b);
return b;
}
ll t,n,m,a,b,x;
ll ls(vector<ll> l){
ll ret=0;
vector<int> lis;
lis.pb(-INF);
for(int i=0; i<n; i++){
if(lis.back()<l[i])
lis.pb(l[i]);
else{
int idx=lower_bound(lis.begin(), lis.end(), l[i])-lis.begin();
lis[idx] = l[i];
}
}
ret = lis.sz-1;
return ret;
}
signed main(){
sanic; cin.tie(0);
cin >> n >> x;
vector<ll> d;
for(int i=0; i<n; i++){
ll q;
cin >> q;
d.pb(q);
}
ll ans=ls(d);
if(!x){
cout << ans;
return 0;
}
for(int j=0; j<n; j++){
vector<ll> g;
g = d;
/*
for(int l=0; l<=j; l++)
g[l] += x;
ans = max(ls(g), ans);
g = d;
*/
for(int l=0; l<=j; l++)
g[l] -= x;
ans = max(ls(g), ans);
}
cout << ans;
}
컴파일 시 표준 에러 (stderr) 메시지
glo.cpp: In function 'll ls(std::vector<long long int>)':
glo.cpp:27:12: warning: overflow in conversion from 'long long int' to 'std::vector<int>::value_type' {aka 'int'} changes value from '-100000000000000000' to '-1569325056' [-Woverflow]
27 | lis.pb(-INF);
| ^~~~
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