Submission #1179487
Source Code Expand
#include <cstdio> #include <cstring> #include <algorithm> using namespace std; int N,K; long long a[5000]; int dp[5000][5000]; int rec(int x, int y); bool need(int i); int main(){ int ans; int left,right; scanf("%d %d", &N,&K); for(int i=0;i<N;i++){ scanf("%lld",&a[i]); } sort(a,a+N); if(need(0)==true){ ans = 0; }else if(need(N-1)==false){ ans = N; }else{ left = 0; right = N-1; while(left<right-1){ int m = (right - left) / 2 + left; if(need(m)){ right = m; }else{ left = m; } } ans = right; } printf("%d\n",ans); return 0; } int rec(int x,int y){ if(dp[x][y]>=0){ return dp[x][y]; } if(x==0){ if(a[0]==y) return 1; else return 0; } else { int res = 0; if(rec(x-1,y)==1){ res = 1; } if(y>=a[x]){ if(rec(x-1,y-a[x])==1){ res = 1; } } dp[x][y] = res; return res; } } bool need(int i){ int temp = a[i]; a[i] = 0; memset(dp,-1,sizeof(dp)); bool found = false; for(int j=max(0,K-temp);j<K;j++){ if(rec(N-1,j)==1){ found = true; break; } } a[i] = temp; return found; }
Submission Info
Submission Time | |
---|---|
Task | D - No Need |
User | uchina |
Language | C++14 (GCC 5.4.1) |
Score | 600 |
Code Size | 1492 Byte |
Status | AC |
Exec Time | 958 ms |
Memory | 98176 KB |
Compile Error
./Main.cpp: In function ‘int main()’: ./Main.cpp:18:26: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d %d", &N,&K); ^ ./Main.cpp:20:28: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%lld",&a[i]); ^
Judge Result
Set Name | Sample | Subtask | All | ||||||
---|---|---|---|---|---|---|---|---|---|
Score / Max Score | 0 / 0 | 300 / 300 | 300 / 300 | ||||||
Status |
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Set Name | Test Cases |
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Sample | 0_000.txt, 0_001.txt, 0_002.txt |
Subtask | 0_000.txt, 0_001.txt, 0_002.txt, 1_003.txt, 1_004.txt, 1_005.txt, 1_006.txt, 1_007.txt, 1_008.txt, 1_009.txt, 1_010.txt, 1_011.txt, 1_012.txt, 1_013.txt, 1_014.txt, 1_015.txt, 1_016.txt, 1_017.txt, 1_018.txt, 1_019.txt, 1_020.txt, 1_021.txt, 1_022.txt, 1_023.txt, 1_024.txt, 1_025.txt |
All | 0_000.txt, 0_001.txt, 0_002.txt, 1_003.txt, 1_004.txt, 1_005.txt, 1_006.txt, 1_007.txt, 1_008.txt, 1_009.txt, 1_010.txt, 1_011.txt, 1_012.txt, 1_013.txt, 1_014.txt, 1_015.txt, 1_016.txt, 1_017.txt, 1_018.txt, 1_019.txt, 1_020.txt, 1_021.txt, 1_022.txt, 1_023.txt, 1_024.txt, 1_025.txt, 2_026.txt, 2_027.txt, 2_028.txt, 2_029.txt, 2_030.txt, 2_031.txt, 2_032.txt, 2_033.txt, 2_034.txt, 2_035.txt, 2_036.txt, 2_037.txt, 2_038.txt, 2_039.txt, 2_040.txt, 2_041.txt, 2_042.txt, 2_043.txt, 2_044.txt, 2_045.txt, 2_046.txt, 2_047.txt, 2_048.txt, 2_049.txt, 2_050.txt |
Case Name | Status | Exec Time | Memory |
---|---|---|---|
0_000.txt | AC | 47 ms | 97792 KB |
0_001.txt | AC | 36 ms | 97792 KB |
0_002.txt | AC | 59 ms | 97792 KB |
1_003.txt | AC | 25 ms | 97792 KB |
1_004.txt | AC | 25 ms | 97792 KB |
1_005.txt | AC | 25 ms | 97792 KB |
1_006.txt | AC | 36 ms | 97792 KB |
1_007.txt | AC | 25 ms | 97792 KB |
1_008.txt | AC | 25 ms | 97792 KB |
1_009.txt | AC | 38 ms | 97792 KB |
1_010.txt | AC | 25 ms | 97792 KB |
1_011.txt | AC | 25 ms | 97792 KB |
1_012.txt | AC | 25 ms | 97792 KB |
1_013.txt | AC | 25 ms | 97792 KB |
1_014.txt | AC | 25 ms | 97792 KB |
1_015.txt | AC | 26 ms | 97792 KB |
1_016.txt | AC | 36 ms | 97792 KB |
1_017.txt | AC | 25 ms | 97792 KB |
1_018.txt | AC | 36 ms | 97792 KB |
1_019.txt | AC | 138 ms | 97792 KB |
1_020.txt | AC | 25 ms | 97792 KB |
1_021.txt | AC | 25 ms | 97792 KB |
1_022.txt | AC | 25 ms | 97792 KB |
1_023.txt | AC | 25 ms | 97792 KB |
1_024.txt | AC | 137 ms | 97792 KB |
1_025.txt | AC | 139 ms | 97792 KB |
2_026.txt | AC | 25 ms | 97792 KB |
2_027.txt | AC | 93 ms | 97792 KB |
2_028.txt | AC | 25 ms | 97792 KB |
2_029.txt | AC | 193 ms | 98048 KB |
2_030.txt | AC | 371 ms | 98048 KB |
2_031.txt | AC | 25 ms | 98048 KB |
2_032.txt | AC | 25 ms | 98048 KB |
2_033.txt | AC | 25 ms | 98048 KB |
2_034.txt | AC | 25 ms | 98048 KB |
2_035.txt | AC | 26 ms | 98048 KB |
2_036.txt | AC | 168 ms | 98048 KB |
2_037.txt | AC | 36 ms | 97792 KB |
2_038.txt | AC | 25 ms | 97792 KB |
2_039.txt | AC | 36 ms | 97792 KB |
2_040.txt | AC | 346 ms | 98048 KB |
2_041.txt | AC | 96 ms | 98048 KB |
2_042.txt | AC | 127 ms | 98048 KB |
2_043.txt | AC | 82 ms | 98048 KB |
2_044.txt | AC | 87 ms | 98048 KB |
2_045.txt | AC | 62 ms | 98048 KB |
2_046.txt | AC | 547 ms | 98048 KB |
2_047.txt | AC | 441 ms | 98048 KB |
2_048.txt | AC | 958 ms | 98048 KB |
2_049.txt | AC | 652 ms | 98048 KB |
2_050.txt | AC | 630 ms | 98176 KB |