結果
問題 | No.371 ぼく悪いプライムじゃないよ |
ユーザー | LayCurse |
提出日時 | 2016-05-13 22:36:26 |
言語 | C++11 (gcc 11.4.0) |
結果 |
AC
|
実行時間 | 6 ms / 1,000 ms |
コード長 | 3,489 bytes |
コンパイル時間 | 1,480 ms |
コンパイル使用メモリ | 161,852 KB |
実行使用メモリ | 7,532 KB |
最終ジャッジ日時 | 2024-06-09 19:17:21 |
合計ジャッジ時間 | 2,772 ms |
ジャッジサーバーID (参考情報) |
judge4 / judge1 |
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テストケース
テストケース表示入力 | 結果 | 実行時間 実行使用メモリ |
---|---|---|
testcase_00 | AC | 2 ms
6,816 KB |
testcase_01 | AC | 3 ms
6,948 KB |
testcase_02 | AC | 3 ms
6,940 KB |
testcase_03 | AC | 3 ms
6,944 KB |
testcase_04 | AC | 2 ms
6,944 KB |
testcase_05 | AC | 2 ms
6,944 KB |
testcase_06 | AC | 2 ms
6,944 KB |
testcase_07 | AC | 2 ms
6,944 KB |
testcase_08 | AC | 2 ms
6,940 KB |
testcase_09 | AC | 2 ms
6,944 KB |
testcase_10 | AC | 2 ms
6,940 KB |
testcase_11 | AC | 2 ms
6,944 KB |
testcase_12 | AC | 2 ms
6,944 KB |
testcase_13 | AC | 2 ms
6,940 KB |
testcase_14 | AC | 2 ms
6,940 KB |
testcase_15 | AC | 2 ms
6,944 KB |
testcase_16 | AC | 2 ms
6,944 KB |
testcase_17 | AC | 2 ms
6,944 KB |
testcase_18 | AC | 3 ms
6,944 KB |
testcase_19 | AC | 3 ms
6,940 KB |
testcase_20 | AC | 2 ms
6,944 KB |
testcase_21 | AC | 3 ms
6,940 KB |
testcase_22 | AC | 3 ms
6,940 KB |
testcase_23 | AC | 3 ms
6,944 KB |
testcase_24 | AC | 3 ms
6,940 KB |
testcase_25 | AC | 2 ms
6,940 KB |
testcase_26 | AC | 2 ms
6,944 KB |
testcase_27 | AC | 3 ms
6,940 KB |
testcase_28 | AC | 2 ms
6,944 KB |
testcase_29 | AC | 6 ms
7,532 KB |
testcase_30 | AC | 3 ms
6,944 KB |
testcase_31 | AC | 2 ms
6,940 KB |
testcase_32 | AC | 2 ms
6,940 KB |
testcase_33 | AC | 3 ms
6,940 KB |
testcase_34 | AC | 3 ms
6,940 KB |
testcase_35 | AC | 3 ms
6,944 KB |
testcase_36 | AC | 2 ms
6,944 KB |
testcase_37 | AC | 3 ms
6,944 KB |
testcase_38 | AC | 2 ms
6,940 KB |
testcase_39 | AC | 2 ms
6,940 KB |
testcase_40 | AC | 3 ms
6,940 KB |
testcase_41 | AC | 2 ms
6,940 KB |
testcase_42 | AC | 3 ms
6,944 KB |
testcase_43 | AC | 5 ms
6,948 KB |
testcase_44 | AC | 3 ms
6,944 KB |
testcase_45 | AC | 2 ms
6,944 KB |
コンパイルメッセージ
main.cpp: In function ‘void reader(double*)’: main.cpp:15:29: warning: ignoring return value of ‘int scanf(const char*, ...)’ declared with attribute ‘warn_unused_result’ [-Wunused-result] 15 | void reader(double *x){scanf("%lf",x);} | ~~~~~^~~~~~~~~ main.cpp: In function ‘int main()’: main.cpp:26:44: warning: ‘res’ may be used uninitialized in this function [-Wmaybe-uninitialized] 26 | template<class T> void writerLn(T x){writer(x,'\n');} | ~~~~~~^~~~~~~~ main.cpp:48:6: note: ‘res’ was declared here 48 | ll res; | ^~~
ソースコード
#include<bits/stdc++.h> using namespace std; #define REP(i,a,b) for(i=a;i<b;i++) #define rep(i,n) REP(i,0,n) #define mygc(c) (c)=getchar_unlocked() #define mypc(c) putchar_unlocked(c) #define ll long long #define ull unsigned ll void reader(int *x){int k,m=0;*x=0;for(;;){mygc(k);if(k=='-'){m=1;break;}if('0'<=k&&k<='9'){*x=k-'0';break;}}for(;;){mygc(k);if(k<'0'||k>'9')break;*x=(*x)*10+k-'0';}if(m)(*x)=-(*x);} void reader(ll *x){int k,m=0;*x=0;for(;;){mygc(k);if(k=='-'){m=1;break;}if('0'<=k&&k<='9'){*x=k-'0';break;}}for(;;){mygc(k);if(k<'0'||k>'9')break;*x=(*x)*10+k-'0';}if(m)(*x)=-(*x);} void reader(double *x){scanf("%lf",x);} int reader(char c[]){int i,s=0;for(;;){mygc(i);if(i!=' '&&i!='\n'&&i!='\r'&&i!='\t'&&i!=EOF) break;}c[s++]=i;for(;;){mygc(i);if(i==' '||i=='\n'||i=='\r'||i=='\t'||i==EOF) break;c[s++]=i;}c[s]='\0';return s;} template <class T, class S> void reader(T *x, S *y){reader(x);reader(y);} template <class T, class S, class U> void reader(T *x, S *y, U *z){reader(x);reader(y);reader(z);} template <class T, class S, class U, class V> void reader(T *x, S *y, U *z, V *w){reader(x);reader(y);reader(z);reader(w);} void writer(int x, char c){int s=0,m=0;char f[10];if(x<0)m=1,x=-x;while(x)f[s++]=x%10,x/=10;if(!s)f[s++]=0;if(m)mypc('-');while(s--)mypc(f[s]+'0');mypc(c);} void writer(ll x, char c){int s=0,m=0;char f[20];if(x<0)m=1,x=-x;while(x)f[s++]=x%10,x/=10;if(!s)f[s++]=0;if(m)mypc('-');while(s--)mypc(f[s]+'0');mypc(c);} void writer(double x, char c){printf("%.15f",x);mypc(c);} void writer(const char c[]){int i;for(i=0;c[i]!='\0';i++)mypc(c[i]);} void writer(const char x[], char c){int i;for(i=0;x[i]!='\0';i++)mypc(x[i]);mypc(c);} template<class T> void writerLn(T x){writer(x,'\n');} template<class T, class S> void writerLn(T x, S y){writer(x,' ');writer(y,'\n');} template<class T, class S, class U> void writerLn(T x, S y, U z){writer(x,' ');writer(y,' ');writer(z,'\n');} template<class T> void writerArr(T x[], int n){int i;if(!n){mypc('\n');return;}rep(i,n-1)writer(x[i],' ');writer(x[n-1],'\n');} char memarr[17000000]; void *mem = memarr; #define MD 1000000007 int getPrime(int N, int res[]){int i,a,b,s=1,f[4780],S=1;const int r=23000;bool B[r],*p=B;N/=2;res[0]=2;b=min(r,N);REP(i,1,b)p[i]=1;REP(i,1,b)if(p[i]){res[s++]=2*i+1;f[S]=2*i*(i+1);if(f[S]<N){for(;f[S]<r;f[S]+=res[S])p[f[S]]=0;S++;}}for(a=r;a<N;a+=r){b=min(a+r,N);p-=r;REP(i,a,b)p[i]=1;REP(i,1,S)for(;f[i]<b;f[i]+=res[i])p[f[i]]=0;REP(i,a,b)if(p[i])res[s++]=2*i+1;}return s;} template<class T> int getFactors(ll n, T fac[], int num[], int ps, int p[]){int i,j,k,s=0;rep(i,ps){if((ll)p[i]*p[i]>n) break;if(n%p[i]==0){fac[s]=p[i];num[s]=0;while(n%p[i]==0)n/=p[i],num[s]++;s++;}}if(n>1)fac[s]=n,num[s++]=1;return s;} ll X, Y; int ps, p[100000]; ll f[100]; int num[100], fs; ll mn[400000]; int main(){ ll i, j, k; ll mx; ll res; ps = getPrime(110000, p); reader(&X,&Y); if(Y - X > 300000){ for(i=ps-1;i>=0;i--){ if((ll)p[i]*p[i] > Y) continue; for(j=i;j<ps;j++){ if((ll)p[i]*p[j] > Y) break; } res = (ll)p[i] * p[j-1]; if(res >= X) break; } } else { rep(i,Y-X+1) mn[i] = -1; rep(i,ps){ k = (X+p[i]-1) / p[i] * p[i]; while(k<=Y){ if(mn[k-X] == -1 && k != p[i]) mn[k-X] = p[i]; k += p[i]; } } // rep(i,Y-X+1) printf("%lld %lld\n",i+X,mn[i]); mx = 0; rep(i,Y-X+1) if(mn[i] >= mx){ mx = mn[i]; res = i + X; } } writerLn(res); return 0; }