Submission #2092123
Source Code Expand
#include<bits/stdc++.h> #define fo(i,a,b) for(i=a;i<=b;i++) #define fd(i,a,b) for(i=a;i>=b;i--) #define min(a,b) (a<b?a:b) #define max(a,b) (a>b?a:b) typedef long long ll; using namespace std; int check(int x){ if (x==1) return 0; int i; fo(i,2,x-1){ if (i*i>x) break; if (x%i==0) return 0; }return 1; } const int maxn=1e7+5; int i,j,n; int a[205],ans,b[205],n1,n2,f[205]; bool bz[maxn],w[205][205]; int bk[205],bp; void add(int x){ if (x&1) a[++n1]=x;else b[++n2]=x; } bool dfs(int x){ if (bk[x]==bp) return 0; bk[x]=bp; int i; fo(i,1,n2) if(w[x][i]&&(!f[i]||dfs(f[i])))return f[i]=x,1; return 0; } int main(){ scanf("%d",&n); fo(i,1,n){ int x; scanf("%d",&x); bz[x]=1; } fd(i,maxn-1,1) { bz[i]^=bz[i-1]; if (bz[i]) add(i); } fo(i,1,n1) fo(j,1,n2) w[i][j]=check(abs(a[i]-b[j])); fo(i,1,n1) bp++,ans+=dfs(i); n1-=ans,n2-=ans; if (n1&1) ans++; ans+=n1+n2; printf("%d\n",ans); }
Submission Info
Submission Time | |
---|---|
Task | F - Prime Flip |
User | Drin_E |
Language | C++14 (GCC 5.4.1) |
Score | 1200 |
Code Size | 963 Byte |
Status | AC |
Exec Time | 24 ms |
Memory | 9984 KB |
Compile Error
./Main.cpp: In function ‘int main()’: ./Main.cpp:32:16: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&n); ^ ./Main.cpp:35:17: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&x); ^
Judge Result
Set Name | Sample | All | ||||
---|---|---|---|---|---|---|
Score / Max Score | 0 / 0 | 1200 / 1200 | ||||
Status |
|
|
Set Name | Test Cases |
---|---|
Sample | 0_00.txt, 0_01.txt, 0_02.txt |
All | 0_00.txt, 0_01.txt, 0_02.txt, 1_00.txt, 1_01.txt, 1_02.txt, 1_03.txt, 1_04.txt, 1_05.txt, 1_06.txt, 1_07.txt, 1_08.txt, 1_09.txt, 1_10.txt, 1_11.txt, 1_12.txt, 1_13.txt, 1_14.txt, 1_15.txt, 1_16.txt, 1_17.txt, 1_18.txt, 1_19.txt, 1_20.txt, 1_21.txt, 1_22.txt, 1_23.txt, 1_24.txt, 1_25.txt, 1_26.txt, 1_27.txt, 1_28.txt, 1_29.txt, 1_30.txt, 1_31.txt, 1_32.txt, 1_33.txt, 1_34.txt, 1_35.txt, 1_36.txt, 1_37.txt, 1_38.txt, 1_39.txt, 1_40.txt, 1_41.txt, 1_42.txt, 1_43.txt, 1_44.txt, 1_45.txt, 1_46.txt, 1_47.txt, 1_48.txt, 1_49.txt, 1_50.txt, 1_51.txt, 1_52.txt, 1_53.txt, 1_54.txt, 1_55.txt, 1_56.txt, 1_57.txt, 1_58.txt, 1_59.txt, 1_60.txt, 1_61.txt, 1_62.txt, 1_63.txt, 1_64.txt, 1_65.txt, 1_66.txt, 1_67.txt, 1_68.txt, 1_69.txt, 1_70.txt, 1_71.txt |
Case Name | Status | Exec Time | Memory |
---|---|---|---|
0_00.txt | AC | 12 ms | 9984 KB |
0_01.txt | AC | 12 ms | 9984 KB |
0_02.txt | AC | 12 ms | 9984 KB |
1_00.txt | AC | 12 ms | 9984 KB |
1_01.txt | AC | 12 ms | 9984 KB |
1_02.txt | AC | 12 ms | 9984 KB |
1_03.txt | AC | 12 ms | 9984 KB |
1_04.txt | AC | 12 ms | 9984 KB |
1_05.txt | AC | 12 ms | 9984 KB |
1_06.txt | AC | 12 ms | 9984 KB |
1_07.txt | AC | 24 ms | 9984 KB |
1_08.txt | AC | 21 ms | 9984 KB |
1_09.txt | AC | 19 ms | 9984 KB |
1_10.txt | AC | 17 ms | 9984 KB |
1_11.txt | AC | 15 ms | 9984 KB |
1_12.txt | AC | 15 ms | 9984 KB |
1_13.txt | AC | 14 ms | 9984 KB |
1_14.txt | AC | 13 ms | 9984 KB |
1_15.txt | AC | 12 ms | 9984 KB |
1_16.txt | AC | 13 ms | 9984 KB |
1_17.txt | AC | 12 ms | 9984 KB |
1_18.txt | AC | 12 ms | 9984 KB |
1_19.txt | AC | 12 ms | 9984 KB |
1_20.txt | AC | 12 ms | 9984 KB |
1_21.txt | AC | 12 ms | 9984 KB |
1_22.txt | AC | 12 ms | 9984 KB |
1_23.txt | AC | 12 ms | 9984 KB |
1_24.txt | AC | 12 ms | 9984 KB |
1_25.txt | AC | 12 ms | 9984 KB |
1_26.txt | AC | 12 ms | 9984 KB |
1_27.txt | AC | 12 ms | 9984 KB |
1_28.txt | AC | 12 ms | 9984 KB |
1_29.txt | AC | 12 ms | 9984 KB |
1_30.txt | AC | 12 ms | 9984 KB |
1_31.txt | AC | 12 ms | 9984 KB |
1_32.txt | AC | 12 ms | 9984 KB |
1_33.txt | AC | 12 ms | 9984 KB |
1_34.txt | AC | 12 ms | 9984 KB |
1_35.txt | AC | 12 ms | 9984 KB |
1_36.txt | AC | 12 ms | 9984 KB |
1_37.txt | AC | 12 ms | 9984 KB |
1_38.txt | AC | 12 ms | 9984 KB |
1_39.txt | AC | 12 ms | 9984 KB |
1_40.txt | AC | 21 ms | 9984 KB |
1_41.txt | AC | 22 ms | 9984 KB |
1_42.txt | AC | 22 ms | 9984 KB |
1_43.txt | AC | 22 ms | 9984 KB |
1_44.txt | AC | 21 ms | 9984 KB |
1_45.txt | AC | 21 ms | 9984 KB |
1_46.txt | AC | 21 ms | 9984 KB |
1_47.txt | AC | 21 ms | 9984 KB |
1_48.txt | AC | 21 ms | 9984 KB |
1_49.txt | AC | 21 ms | 9984 KB |
1_50.txt | AC | 21 ms | 9984 KB |
1_51.txt | AC | 21 ms | 9984 KB |
1_52.txt | AC | 22 ms | 9984 KB |
1_53.txt | AC | 22 ms | 9984 KB |
1_54.txt | AC | 22 ms | 9984 KB |
1_55.txt | AC | 21 ms | 9984 KB |
1_56.txt | AC | 12 ms | 9984 KB |
1_57.txt | AC | 12 ms | 9984 KB |
1_58.txt | AC | 12 ms | 9984 KB |
1_59.txt | AC | 12 ms | 9984 KB |
1_60.txt | AC | 12 ms | 9984 KB |
1_61.txt | AC | 12 ms | 9984 KB |
1_62.txt | AC | 12 ms | 9984 KB |
1_63.txt | AC | 12 ms | 9984 KB |
1_64.txt | AC | 12 ms | 9984 KB |
1_65.txt | AC | 12 ms | 9984 KB |
1_66.txt | AC | 12 ms | 9984 KB |
1_67.txt | AC | 12 ms | 9984 KB |
1_68.txt | AC | 12 ms | 9984 KB |
1_69.txt | AC | 12 ms | 9984 KB |
1_70.txt | AC | 12 ms | 9984 KB |
1_71.txt | AC | 12 ms | 9984 KB |