| # |
Submission time |
Handle |
Problem |
Language |
Result |
Execution time |
Memory |
| 693891 |
2023-02-03T11:14:21 Z |
79brue |
Cigle (COI21_cigle) |
C++17 |
|
258 ms |
67360 KB |
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
int n;
int arr[5002], sum[5002];
int DP[5002][5002];
int maxV[5002];
int ans;
int main(){
scanf("%d", &n);
for(int i=1; i<=n; i++) scanf("%d", &arr[i]), sum[i] = sum[i-1] + arr[i];
for(int m=1; m<n; m++){
/// Case 1. 아래가 더 짧거나 같다
{
int s = m, maxVal = 0, match = 0, nextturn = 0;
for(int e=m+1; e<=n; e++){
if(arr[m] > sum[e] - sum[m]) continue;
if(nextturn) match++, nextturn = 0;
while(s>1 && sum[e] - sum[m] >= sum[m] - sum[s-2]){
s--;
maxVal = max(maxVal, DP[s][m] + match);
}
if(sum[e] - sum[m] == sum[m] - sum[s-1]) nextturn = 1;
DP[m+1][e] = max(DP[m+1][e], maxVal);
}
}
/// Case 2. 위가 더 짧다
{
for(int i=1; i<=m; i++) maxV[i] = max(maxV[i-1], DP[i][m]);
int s = m, match = 0, nextturn = 0;
for(int e=m+1; e<=n; e++){
if(nextturn) match++, nextturn = 0;
while(s > 1 && sum[e] - sum[m] >= sum[m] - sum[s-1]){
if(sum[e] - sum[m] == sum[m] - sum[s-1]) nextturn = 1;
s--;
}
if(s == 1 && sum[e] - sum[m] >= sum[m] - sum[s-1]) break;
DP[m+1][e] = max(DP[m+1][e], match + maxV[s]);
}
}
}
// for(int i=1; i<=n; i++) for(int j=i; j<=n; j++) printf("%d %d: %d\n", i, j, DP[i][j]);
for(int i=1; i<=n; i++) ans = max(ans, DP[i][n]);
printf("%d", ans);
}
Compilation message
cigle.cpp: In function 'int main()':
cigle.cpp:14:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
14 | scanf("%d", &n);
| ~~~~~^~~~~~~~~~
cigle.cpp:15:34: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
15 | for(int i=1; i<=n; i++) scanf("%d", &arr[i]), sum[i] = sum[i-1] + arr[i];
| ~~~~~^~~~~~~~~~~~~~~
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 ms |
340 KB |
Output is correct |
| 2 |
Correct |
1 ms |
340 KB |
Output is correct |
| 3 |
Correct |
1 ms |
340 KB |
Output is correct |
| 4 |
Correct |
1 ms |
340 KB |
Output is correct |
| 5 |
Correct |
1 ms |
340 KB |
Output is correct |
| 6 |
Correct |
1 ms |
312 KB |
Output is correct |
| 7 |
Correct |
1 ms |
340 KB |
Output is correct |
| 8 |
Correct |
0 ms |
340 KB |
Output is correct |
| 9 |
Correct |
1 ms |
304 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 ms |
340 KB |
Output is correct |
| 2 |
Correct |
1 ms |
340 KB |
Output is correct |
| 3 |
Correct |
1 ms |
340 KB |
Output is correct |
| 4 |
Correct |
1 ms |
340 KB |
Output is correct |
| 5 |
Correct |
1 ms |
340 KB |
Output is correct |
| 6 |
Correct |
1 ms |
312 KB |
Output is correct |
| 7 |
Correct |
1 ms |
340 KB |
Output is correct |
| 8 |
Correct |
0 ms |
340 KB |
Output is correct |
| 9 |
Correct |
1 ms |
304 KB |
Output is correct |
| 10 |
Correct |
1 ms |
596 KB |
Output is correct |
| 11 |
Correct |
1 ms |
596 KB |
Output is correct |
| 12 |
Correct |
1 ms |
596 KB |
Output is correct |
| 13 |
Correct |
1 ms |
596 KB |
Output is correct |
| 14 |
Correct |
1 ms |
596 KB |
Output is correct |
| 15 |
Correct |
1 ms |
596 KB |
Output is correct |
| 16 |
Correct |
1 ms |
564 KB |
Output is correct |
| 17 |
Correct |
1 ms |
596 KB |
Output is correct |
| 18 |
Correct |
1 ms |
596 KB |
Output is correct |
| 19 |
Correct |
1 ms |
596 KB |
Output is correct |
| 20 |
Correct |
1 ms |
596 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
3 ms |
2772 KB |
Output is correct |
| 2 |
Correct |
3 ms |
2772 KB |
Output is correct |
| 3 |
Correct |
3 ms |
2772 KB |
Output is correct |
| 4 |
Correct |
3 ms |
2772 KB |
Output is correct |
| 5 |
Correct |
3 ms |
2772 KB |
Output is correct |
| 6 |
Correct |
4 ms |
2772 KB |
Output is correct |
| 7 |
Correct |
3 ms |
2772 KB |
Output is correct |
| 8 |
Correct |
3 ms |
2772 KB |
Output is correct |
| 9 |
Correct |
3 ms |
2772 KB |
Output is correct |
| 10 |
Correct |
3 ms |
2772 KB |
Output is correct |
| 11 |
Correct |
3 ms |
2772 KB |
Output is correct |
| 12 |
Correct |
4 ms |
2772 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 ms |
340 KB |
Output is correct |
| 2 |
Correct |
1 ms |
340 KB |
Output is correct |
| 3 |
Correct |
1 ms |
340 KB |
Output is correct |
| 4 |
Correct |
1 ms |
340 KB |
Output is correct |
| 5 |
Correct |
1 ms |
340 KB |
Output is correct |
| 6 |
Correct |
1 ms |
312 KB |
Output is correct |
| 7 |
Correct |
1 ms |
340 KB |
Output is correct |
| 8 |
Correct |
0 ms |
340 KB |
Output is correct |
| 9 |
Correct |
1 ms |
304 KB |
Output is correct |
| 10 |
Correct |
1 ms |
596 KB |
Output is correct |
| 11 |
Correct |
1 ms |
596 KB |
Output is correct |
| 12 |
Correct |
1 ms |
596 KB |
Output is correct |
| 13 |
Correct |
1 ms |
596 KB |
Output is correct |
| 14 |
Correct |
1 ms |
596 KB |
Output is correct |
| 15 |
Correct |
1 ms |
596 KB |
Output is correct |
| 16 |
Correct |
1 ms |
564 KB |
Output is correct |
| 17 |
Correct |
1 ms |
596 KB |
Output is correct |
| 18 |
Correct |
1 ms |
596 KB |
Output is correct |
| 19 |
Correct |
1 ms |
596 KB |
Output is correct |
| 20 |
Correct |
1 ms |
596 KB |
Output is correct |
| 21 |
Correct |
3 ms |
2772 KB |
Output is correct |
| 22 |
Correct |
3 ms |
2772 KB |
Output is correct |
| 23 |
Correct |
3 ms |
2772 KB |
Output is correct |
| 24 |
Correct |
3 ms |
2772 KB |
Output is correct |
| 25 |
Correct |
3 ms |
2772 KB |
Output is correct |
| 26 |
Correct |
4 ms |
2772 KB |
Output is correct |
| 27 |
Correct |
3 ms |
2772 KB |
Output is correct |
| 28 |
Correct |
3 ms |
2772 KB |
Output is correct |
| 29 |
Correct |
3 ms |
2772 KB |
Output is correct |
| 30 |
Correct |
3 ms |
2772 KB |
Output is correct |
| 31 |
Correct |
3 ms |
2772 KB |
Output is correct |
| 32 |
Correct |
4 ms |
2772 KB |
Output is correct |
| 33 |
Correct |
3 ms |
2772 KB |
Output is correct |
| 34 |
Correct |
3 ms |
2772 KB |
Output is correct |
| 35 |
Correct |
3 ms |
2772 KB |
Output is correct |
| 36 |
Correct |
3 ms |
2736 KB |
Output is correct |
| 37 |
Correct |
3 ms |
2772 KB |
Output is correct |
| 38 |
Correct |
3 ms |
2736 KB |
Output is correct |
| 39 |
Correct |
3 ms |
2772 KB |
Output is correct |
| 40 |
Correct |
3 ms |
2772 KB |
Output is correct |
| 41 |
Correct |
3 ms |
2772 KB |
Output is correct |
| 42 |
Correct |
3 ms |
2736 KB |
Output is correct |
| 43 |
Correct |
3 ms |
2772 KB |
Output is correct |
| 44 |
Correct |
4 ms |
2772 KB |
Output is correct |
| 45 |
Correct |
3 ms |
2708 KB |
Output is correct |
| 46 |
Correct |
3 ms |
2772 KB |
Output is correct |
| 47 |
Correct |
4 ms |
2772 KB |
Output is correct |
| 48 |
Correct |
3 ms |
2744 KB |
Output is correct |
| 49 |
Correct |
3 ms |
2772 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 ms |
340 KB |
Output is correct |
| 2 |
Correct |
1 ms |
340 KB |
Output is correct |
| 3 |
Correct |
1 ms |
340 KB |
Output is correct |
| 4 |
Correct |
1 ms |
340 KB |
Output is correct |
| 5 |
Correct |
1 ms |
340 KB |
Output is correct |
| 6 |
Correct |
1 ms |
312 KB |
Output is correct |
| 7 |
Correct |
1 ms |
340 KB |
Output is correct |
| 8 |
Correct |
0 ms |
340 KB |
Output is correct |
| 9 |
Correct |
1 ms |
304 KB |
Output is correct |
| 10 |
Correct |
1 ms |
596 KB |
Output is correct |
| 11 |
Correct |
1 ms |
596 KB |
Output is correct |
| 12 |
Correct |
1 ms |
596 KB |
Output is correct |
| 13 |
Correct |
1 ms |
596 KB |
Output is correct |
| 14 |
Correct |
1 ms |
596 KB |
Output is correct |
| 15 |
Correct |
1 ms |
596 KB |
Output is correct |
| 16 |
Correct |
1 ms |
564 KB |
Output is correct |
| 17 |
Correct |
1 ms |
596 KB |
Output is correct |
| 18 |
Correct |
1 ms |
596 KB |
Output is correct |
| 19 |
Correct |
1 ms |
596 KB |
Output is correct |
| 20 |
Correct |
1 ms |
596 KB |
Output is correct |
| 21 |
Correct |
3 ms |
2772 KB |
Output is correct |
| 22 |
Correct |
3 ms |
2772 KB |
Output is correct |
| 23 |
Correct |
3 ms |
2772 KB |
Output is correct |
| 24 |
Correct |
3 ms |
2772 KB |
Output is correct |
| 25 |
Correct |
3 ms |
2772 KB |
Output is correct |
| 26 |
Correct |
4 ms |
2772 KB |
Output is correct |
| 27 |
Correct |
3 ms |
2772 KB |
Output is correct |
| 28 |
Correct |
3 ms |
2772 KB |
Output is correct |
| 29 |
Correct |
3 ms |
2772 KB |
Output is correct |
| 30 |
Correct |
3 ms |
2772 KB |
Output is correct |
| 31 |
Correct |
3 ms |
2772 KB |
Output is correct |
| 32 |
Correct |
4 ms |
2772 KB |
Output is correct |
| 33 |
Correct |
3 ms |
2772 KB |
Output is correct |
| 34 |
Correct |
3 ms |
2772 KB |
Output is correct |
| 35 |
Correct |
3 ms |
2772 KB |
Output is correct |
| 36 |
Correct |
3 ms |
2736 KB |
Output is correct |
| 37 |
Correct |
3 ms |
2772 KB |
Output is correct |
| 38 |
Correct |
3 ms |
2736 KB |
Output is correct |
| 39 |
Correct |
3 ms |
2772 KB |
Output is correct |
| 40 |
Correct |
3 ms |
2772 KB |
Output is correct |
| 41 |
Correct |
3 ms |
2772 KB |
Output is correct |
| 42 |
Correct |
3 ms |
2736 KB |
Output is correct |
| 43 |
Correct |
3 ms |
2772 KB |
Output is correct |
| 44 |
Correct |
4 ms |
2772 KB |
Output is correct |
| 45 |
Correct |
3 ms |
2708 KB |
Output is correct |
| 46 |
Correct |
3 ms |
2772 KB |
Output is correct |
| 47 |
Correct |
4 ms |
2772 KB |
Output is correct |
| 48 |
Correct |
3 ms |
2744 KB |
Output is correct |
| 49 |
Correct |
3 ms |
2772 KB |
Output is correct |
| 50 |
Correct |
194 ms |
67360 KB |
Output is correct |
| 51 |
Correct |
196 ms |
67360 KB |
Output is correct |
| 52 |
Correct |
196 ms |
67260 KB |
Output is correct |
| 53 |
Correct |
195 ms |
67272 KB |
Output is correct |
| 54 |
Correct |
234 ms |
67192 KB |
Output is correct |
| 55 |
Correct |
202 ms |
67224 KB |
Output is correct |
| 56 |
Correct |
245 ms |
67272 KB |
Output is correct |
| 57 |
Correct |
244 ms |
67280 KB |
Output is correct |
| 58 |
Correct |
247 ms |
67312 KB |
Output is correct |
| 59 |
Correct |
257 ms |
67316 KB |
Output is correct |
| 60 |
Correct |
258 ms |
67268 KB |
Output is correct |
| 61 |
Correct |
229 ms |
67244 KB |
Output is correct |
| 62 |
Correct |
231 ms |
67272 KB |
Output is correct |
| 63 |
Correct |
215 ms |
67228 KB |
Output is correct |
| 64 |
Correct |
220 ms |
67216 KB |
Output is correct |
| 65 |
Correct |
214 ms |
67316 KB |
Output is correct |
| 66 |
Correct |
225 ms |
67264 KB |
Output is correct |
| 67 |
Correct |
204 ms |
67204 KB |
Output is correct |
| 68 |
Correct |
206 ms |
67284 KB |
Output is correct |
| 69 |
Correct |
205 ms |
67220 KB |
Output is correct |
| 70 |
Correct |
245 ms |
67232 KB |
Output is correct |
| 71 |
Correct |
258 ms |
67240 KB |
Output is correct |
| 72 |
Correct |
231 ms |
67240 KB |
Output is correct |
