#include <bits/stdc++.h>
#define int long long
#define mk make_pair
#define sc second
#define fr first
#define pb emplace_back
#define all(s) s.begin(), s.end()
#define sz(s) ( (int)s.size() )
#define Scan(a) scanf ("%I64d", &a)
#define scan(a) scanf ("%d", &a)
#define pi pair < long long, long long >
using namespace std;
const long long INF = (int)1e18 + 7;
const int N = (int)100007;
const int mod = 1000000007;
int n, k, arr[N], pr[N], par[N][207];
int dp[N][207];
int calc(int l,int r){
return pr[l] * (pr[r] - pr[l]);
}
void solve(int k,int l,int r,int optl,int optr){
if(l > r){
return;
}
int mid = (l + r) >> 1;
int opt = optl;
dp[mid][k] = 0;
for(int i = optl;i <= min(mid,optr); i++){
int cur = dp[i][k - 1] + calc(i,mid);
if(cur >= dp[mid][k]){
dp[mid][k] = cur;
opt = i;
}
}
par[mid][k] = opt;
solve(k,l,mid - 1,optl,opt);
solve(k,mid + 1,r,opt,optr);
}
main(){
cin >> n >> k;
for(int i = 1;i <= n; i++){
cin >> arr[i];
pr[i] = pr[i - 1] + arr[i];
}
if(n < 10000){
for(int g = 1;g <= k; g++){
for(int i = 1;i <= n; i++){
for(int j = 1;j < i; j++){
if(dp[i][g] <= dp[j][g - 1] + (pr[j] * (pr[i] - pr[j]))){
par[i][g] = j;
dp[i][g] = dp[j][g - 1] + (pr[j] * (pr[i] - pr[j]));
}
}
}
}
cout << dp[n][k] << endl;
vector<int > ans;
while(par[n][k]){
ans.pb(par[n][k]);
n = par[n][k];
k--;
}
for(int i = ans.size() - 1; i >= 0; i--){
cout << ans[i] << " ";
}
return 0;
}
for(int i = 1;i <= k; i++){
solve(i,1,n,1,n);
}
cout << dp[n][k] << '\n';
vector<int > ans;
while(par[n][k]){
ans.pb(par[n][k]);
n = par[n][k];
k--;
}
for(int i = ans.size() - 1; i >= 0; i--){
cout << ans[i] << " ";
}
}
/*
7 3
4 1 3 4 0 2 3
*/
Compilation message
sequence.cpp:43:6: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
main(){
^
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
3 ms |
384 KB |
contestant found the optimal answer: 108 == 108 |
2 |
Correct |
2 ms |
384 KB |
contestant found the optimal answer: 999 == 999 |
3 |
Correct |
3 ms |
380 KB |
contestant found the optimal answer: 0 == 0 |
4 |
Correct |
2 ms |
384 KB |
contestant found the optimal answer: 1542524 == 1542524 |
5 |
Correct |
2 ms |
384 KB |
contestant found the optimal answer: 4500000000 == 4500000000 |
6 |
Correct |
2 ms |
384 KB |
contestant found the optimal answer: 1 == 1 |
7 |
Correct |
2 ms |
384 KB |
contestant found the optimal answer: 1 == 1 |
8 |
Correct |
3 ms |
384 KB |
contestant found the optimal answer: 1 == 1 |
9 |
Correct |
2 ms |
384 KB |
contestant found the optimal answer: 100400096 == 100400096 |
10 |
Correct |
2 ms |
384 KB |
contestant found the optimal answer: 900320000 == 900320000 |
11 |
Correct |
2 ms |
384 KB |
contestant found the optimal answer: 3698080248 == 3698080248 |
12 |
Correct |
2 ms |
384 KB |
contestant found the optimal answer: 3200320000 == 3200320000 |
13 |
Correct |
2 ms |
384 KB |
contestant found the optimal answer: 140072 == 140072 |
14 |
Correct |
2 ms |
384 KB |
contestant found the optimal answer: 376041456 == 376041456 |
15 |
Correct |
2 ms |
384 KB |
contestant found the optimal answer: 805 == 805 |
16 |
Correct |
2 ms |
384 KB |
contestant found the optimal answer: 900189994 == 900189994 |
17 |
Correct |
2 ms |
384 KB |
contestant found the optimal answer: 999919994 == 999919994 |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
3 ms |
512 KB |
contestant found the optimal answer: 1093956 == 1093956 |
2 |
Correct |
3 ms |
512 KB |
contestant found the optimal answer: 302460000 == 302460000 |
3 |
Correct |
2 ms |
512 KB |
contestant found the optimal answer: 122453454361 == 122453454361 |
4 |
Correct |
2 ms |
512 KB |
contestant found the optimal answer: 93663683509 == 93663683509 |
5 |
Correct |
2 ms |
512 KB |
contestant found the optimal answer: 1005304678 == 1005304678 |
6 |
Correct |
2 ms |
512 KB |
contestant found the optimal answer: 933702 == 933702 |
7 |
Correct |
2 ms |
512 KB |
contestant found the optimal answer: 25082842857 == 25082842857 |
8 |
Correct |
3 ms |
512 KB |
contestant found the optimal answer: 687136 == 687136 |
9 |
Correct |
2 ms |
512 KB |
contestant found the optimal answer: 27295930079 == 27295930079 |
10 |
Correct |
3 ms |
512 KB |
contestant found the optimal answer: 29000419931 == 29000419931 |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
3 ms |
1024 KB |
contestant found the optimal answer: 610590000 == 610590000 |
2 |
Correct |
3 ms |
1024 KB |
contestant found the optimal answer: 311760000 == 311760000 |
3 |
Correct |
9 ms |
1024 KB |
contestant found the optimal answer: 1989216017013 == 1989216017013 |
4 |
Correct |
4 ms |
1024 KB |
contestant found the optimal answer: 1499437552673 == 1499437552673 |
5 |
Correct |
8 ms |
1024 KB |
contestant found the optimal answer: 1019625819 == 1019625819 |
6 |
Correct |
17 ms |
1152 KB |
contestant found the optimal answer: 107630884 == 107630884 |
7 |
Correct |
11 ms |
1024 KB |
contestant found the optimal answer: 475357671774 == 475357671774 |
8 |
Correct |
5 ms |
1024 KB |
contestant found the optimal answer: 193556962 == 193556962 |
9 |
Correct |
1 ms |
1024 KB |
contestant found the optimal answer: 482389919803 == 482389919803 |
10 |
Correct |
6 ms |
1024 KB |
contestant found the optimal answer: 490686959791 == 490686959791 |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
8 ms |
3584 KB |
contestant found the optimal answer: 21503404 == 21503404 |
2 |
Correct |
8 ms |
3584 KB |
contestant found the optimal answer: 140412195 == 140412195 |
3 |
Correct |
226 ms |
3676 KB |
contestant found the optimal answer: 49729674225461 == 49729674225461 |
4 |
Correct |
9 ms |
3584 KB |
contestant found the optimal answer: 37485571387523 == 37485571387523 |
5 |
Correct |
163 ms |
3704 KB |
contestant found the optimal answer: 679388326 == 679388326 |
6 |
Correct |
150 ms |
3584 KB |
contestant found the optimal answer: 4699030287 == 4699030287 |
7 |
Correct |
181 ms |
3584 KB |
contestant found the optimal answer: 12418819758185 == 12418819758185 |
8 |
Correct |
174 ms |
3704 KB |
contestant found the optimal answer: 31093317350 == 31093317350 |
9 |
Correct |
36 ms |
3584 KB |
contestant found the optimal answer: 12194625429236 == 12194625429236 |
10 |
Correct |
86 ms |
3672 KB |
contestant found the optimal answer: 12345131038664 == 12345131038664 |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
40 ms |
32920 KB |
contestant found the optimal answer: 1818678304 == 1818678304 |
2 |
Correct |
39 ms |
32936 KB |
contestant found the optimal answer: 1326260195 == 1326260195 |
3 |
Correct |
196 ms |
32888 KB |
contestant found the optimal answer: 4973126687469639 == 4973126687469639 |
4 |
Correct |
36 ms |
32888 KB |
contestant found the optimal answer: 3748491676694116 == 3748491676694116 |
5 |
Correct |
117 ms |
32896 KB |
contestant found the optimal answer: 1085432199 == 1085432199 |
6 |
Correct |
152 ms |
33016 KB |
contestant found the optimal answer: 514790755404 == 514790755404 |
7 |
Correct |
148 ms |
32952 KB |
contestant found the optimal answer: 1256105310476641 == 1256105310476641 |
8 |
Correct |
123 ms |
32892 KB |
contestant found the optimal answer: 3099592898816 == 3099592898816 |
9 |
Correct |
151 ms |
32888 KB |
contestant found the optimal answer: 1241131419367412 == 1241131419367412 |
10 |
Correct |
168 ms |
33120 KB |
contestant found the optimal answer: 1243084101967798 == 1243084101967798 |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Runtime error |
145 ms |
132096 KB |
Execution killed with signal 9 (could be triggered by violating memory limits) |
2 |
Halted |
0 ms |
0 KB |
- |