#include <bits/stdc++.h>
using namespace std;
int N, K;
long long pre[100005];
long long dp[100005][2];
int par[100005][205];
inline void solve(int l, int r, int lb, int ub, int lvl){
if(l > r){
return;
}
int mid = l+r>>1;
for(int i = lb; i<=min(mid-1, ub); i++){
if(dp[mid][lvl&1] <= dp[i][lvl&1^1] + pre[i]*(pre[mid] - pre[i])){
dp[mid][lvl&1] = dp[i][lvl&1^1] + pre[i]*(pre[mid] - pre[i]);
par[mid][lvl] = i;
}
}
solve(l, mid-1, lb, par[mid][lvl], lvl);
solve(mid+1, r, par[mid][lvl], ub, lvl);
}
int main(){
cin.sync_with_stdio(0);
cin.tie(0);
cout.tie(0);
cin >> N >> K;
for(int i = 1; i<=N; i++){
cin >> pre[i];
pre[i] += pre[i-1];
}
for(int k = 1; k<=K; k++){
solve(k+1, N, k, N, k);
}
cout << dp[N][K&1] << "\n";
int crnt = N;
for(int k = K; k>=1; k--){
cout << par[crnt][k] << " ";
crnt = par[crnt][k];
}
cout << "\n";
}
Compilation message
sequence.cpp: In function 'void solve(int, int, int, int, int)':
sequence.cpp:14:16: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
int mid = l+r>>1;
~^~
sequence.cpp:16:39: warning: suggest parentheses around arithmetic in operand of '^' [-Wparentheses]
if(dp[mid][lvl&1] <= dp[i][lvl&1^1] + pre[i]*(pre[mid] - pre[i])){
~~~^~
sequence.cpp:17:39: warning: suggest parentheses around arithmetic in operand of '^' [-Wparentheses]
dp[mid][lvl&1] = dp[i][lvl&1^1] + pre[i]*(pre[mid] - pre[i]);
~~~^~
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
2 ms |
376 KB |
contestant found the optimal answer: 108 == 108 |
| 2 |
Correct |
2 ms |
424 KB |
contestant found the optimal answer: 999 == 999 |
| 3 |
Correct |
2 ms |
376 KB |
contestant found the optimal answer: 0 == 0 |
| 4 |
Correct |
2 ms |
376 KB |
contestant found the optimal answer: 1542524 == 1542524 |
| 5 |
Correct |
2 ms |
376 KB |
contestant found the optimal answer: 4500000000 == 4500000000 |
| 6 |
Correct |
2 ms |
376 KB |
contestant found the optimal answer: 1 == 1 |
| 7 |
Correct |
2 ms |
376 KB |
contestant found the optimal answer: 1 == 1 |
| 8 |
Correct |
2 ms |
376 KB |
contestant found the optimal answer: 1 == 1 |
| 9 |
Correct |
2 ms |
504 KB |
contestant found the optimal answer: 100400096 == 100400096 |
| 10 |
Correct |
2 ms |
348 KB |
contestant found the optimal answer: 900320000 == 900320000 |
| 11 |
Correct |
2 ms |
376 KB |
contestant found the optimal answer: 3698080248 == 3698080248 |
| 12 |
Correct |
2 ms |
376 KB |
contestant found the optimal answer: 3200320000 == 3200320000 |
| 13 |
Correct |
2 ms |
376 KB |
contestant found the optimal answer: 140072 == 140072 |
| 14 |
Correct |
2 ms |
376 KB |
contestant found the optimal answer: 376041456 == 376041456 |
| 15 |
Correct |
2 ms |
380 KB |
contestant found the optimal answer: 805 == 805 |
| 16 |
Correct |
2 ms |
376 KB |
contestant found the optimal answer: 900189994 == 900189994 |
| 17 |
Correct |
2 ms |
376 KB |
contestant found the optimal answer: 999919994 == 999919994 |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
2 ms |
380 KB |
contestant found the optimal answer: 1093956 == 1093956 |
| 2 |
Correct |
2 ms |
376 KB |
contestant found the optimal answer: 302460000 == 302460000 |
| 3 |
Correct |
2 ms |
428 KB |
contestant found the optimal answer: 122453454361 == 122453454361 |
| 4 |
Correct |
2 ms |
376 KB |
contestant found the optimal answer: 93663683509 == 93663683509 |
| 5 |
Correct |
2 ms |
376 KB |
contestant found the optimal answer: 1005304678 == 1005304678 |
| 6 |
Correct |
2 ms |
376 KB |
contestant found the optimal answer: 933702 == 933702 |
| 7 |
Correct |
2 ms |
376 KB |
contestant found the optimal answer: 25082842857 == 25082842857 |
| 8 |
Correct |
2 ms |
376 KB |
contestant found the optimal answer: 687136 == 687136 |
| 9 |
Correct |
2 ms |
376 KB |
contestant found the optimal answer: 27295930079 == 27295930079 |
| 10 |
Correct |
2 ms |
376 KB |
contestant found the optimal answer: 29000419931 == 29000419931 |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
2 ms |
504 KB |
contestant found the optimal answer: 610590000 == 610590000 |
| 2 |
Correct |
2 ms |
504 KB |
contestant found the optimal answer: 311760000 == 311760000 |
| 3 |
Correct |
3 ms |
504 KB |
contestant found the optimal answer: 1989216017013 == 1989216017013 |
| 4 |
Correct |
4 ms |
504 KB |
contestant found the optimal answer: 1499437552673 == 1499437552673 |
| 5 |
Correct |
3 ms |
504 KB |
contestant found the optimal answer: 1019625819 == 1019625819 |
| 6 |
Correct |
3 ms |
504 KB |
contestant found the optimal answer: 107630884 == 107630884 |
| 7 |
Correct |
3 ms |
504 KB |
contestant found the optimal answer: 475357671774 == 475357671774 |
| 8 |
Correct |
2 ms |
504 KB |
contestant found the optimal answer: 193556962 == 193556962 |
| 9 |
Correct |
2 ms |
504 KB |
contestant found the optimal answer: 482389919803 == 482389919803 |
| 10 |
Correct |
3 ms |
504 KB |
contestant found the optimal answer: 490686959791 == 490686959791 |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
3 ms |
1144 KB |
contestant found the optimal answer: 21503404 == 21503404 |
| 2 |
Correct |
3 ms |
1144 KB |
contestant found the optimal answer: 140412195 == 140412195 |
| 3 |
Correct |
8 ms |
1272 KB |
contestant found the optimal answer: 49729674225461 == 49729674225461 |
| 4 |
Correct |
3 ms |
1272 KB |
contestant found the optimal answer: 37485571387523 == 37485571387523 |
| 5 |
Correct |
10 ms |
1144 KB |
contestant found the optimal answer: 679388326 == 679388326 |
| 6 |
Correct |
9 ms |
1144 KB |
contestant found the optimal answer: 4699030287 == 4699030287 |
| 7 |
Correct |
10 ms |
1188 KB |
contestant found the optimal answer: 12418819758185 == 12418819758185 |
| 8 |
Correct |
7 ms |
1144 KB |
contestant found the optimal answer: 31093317350 == 31093317350 |
| 9 |
Correct |
4 ms |
1144 KB |
contestant found the optimal answer: 12194625429236 == 12194625429236 |
| 10 |
Correct |
6 ms |
1144 KB |
contestant found the optimal answer: 12345131038664 == 12345131038664 |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
10 ms |
8696 KB |
contestant found the optimal answer: 1818678304 == 1818678304 |
| 2 |
Correct |
10 ms |
8568 KB |
contestant found the optimal answer: 1326260195 == 1326260195 |
| 3 |
Correct |
83 ms |
8696 KB |
contestant found the optimal answer: 4973126687469639 == 4973126687469639 |
| 4 |
Correct |
11 ms |
8696 KB |
contestant found the optimal answer: 3748491676694116 == 3748491676694116 |
| 5 |
Correct |
68 ms |
8712 KB |
contestant found the optimal answer: 1085432199 == 1085432199 |
| 6 |
Correct |
68 ms |
8628 KB |
contestant found the optimal answer: 514790755404 == 514790755404 |
| 7 |
Correct |
81 ms |
8696 KB |
contestant found the optimal answer: 1256105310476641 == 1256105310476641 |
| 8 |
Correct |
61 ms |
8696 KB |
contestant found the optimal answer: 3099592898816 == 3099592898816 |
| 9 |
Correct |
67 ms |
8696 KB |
contestant found the optimal answer: 1241131419367412 == 1241131419367412 |
| 10 |
Correct |
84 ms |
8728 KB |
contestant found the optimal answer: 1243084101967798 == 1243084101967798 |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
91 ms |
83276 KB |
contestant found the optimal answer: 19795776960 == 19795776960 |
| 2 |
Correct |
92 ms |
83196 KB |
contestant found the optimal answer: 19874432173 == 19874432173 |
| 3 |
Correct |
1403 ms |
83508 KB |
contestant found the optimal answer: 497313449256899208 == 497313449256899208 |
| 4 |
Correct |
93 ms |
83388 KB |
contestant found the optimal answer: 374850090734572421 == 374850090734572421 |
| 5 |
Correct |
1787 ms |
83164 KB |
contestant found the optimal answer: 36183271951 == 36183271951 |
| 6 |
Correct |
1014 ms |
83192 KB |
contestant found the optimal answer: 51629847150471 == 51629847150471 |
| 7 |
Correct |
1273 ms |
83548 KB |
contestant found the optimal answer: 124074747024496432 == 124074747024496432 |
| 8 |
Correct |
885 ms |
83372 KB |
contestant found the optimal answer: 309959349080800 == 309959349080800 |
| 9 |
Correct |
977 ms |
83448 KB |
contestant found the optimal answer: 124113525649823701 == 124113525649823701 |
| 10 |
Correct |
1279 ms |
83336 KB |
contestant found the optimal answer: 124309619349406845 == 124309619349406845 |
