結果

問題 No.1419 Power Moves
ユーザー tailstails
提出日時 2021-03-11 14:21:33
言語 C
(gcc 13.3.0)
結果
AC  
実行時間 3 ms / 2,000 ms
コード長 1,934 bytes
コンパイル時間 1,216 ms
コンパイル使用メモリ 33,408 KB
実行使用メモリ 6,820 KB
最終ジャッジ日時 2024-10-13 02:47:27
合計ジャッジ時間 2,313 ms
ジャッジサーバーID
(参考情報)
judge3 / judge5
このコードへのチャレンジ
(要ログイン)
ファイルパターン 結果
sample AC * 3
other AC * 31
権限があれば一括ダウンロードができます
コンパイルメッセージ
main.c: In function 'f2':
main.c:38:7: warning: type of 'v0' defaults to 'int' [-Wimplicit-int]
   38 | long* f2(wp,v0,v1,i,e)
      |       ^~
main.c:38:7: warning: type of 'v1' defaults to 'int' [-Wimplicit-int]
main.c:38:7: warning: type of 'i' defaults to 'int' [-Wimplicit-int]
main.c:38:7: warning: type of 'e' defaults to 'int' [-Wimplicit-int]
main.c:42:9: warning: implicit declaration of function 'sprintf' [-Wimplicit-function-declaration]
   42 |         sprintf(b,"%11d\n%11d\n",v0,v1);
      |         ^~~~~~~
main.c:1:1: note: include '<stdio.h>' or provide a declaration of 'sprintf'
  +++ |+#include <stdio.h>
    1 | #pragma GCC optimize("Ofast")
main.c:42:9: warning: incompatible implicit declaration of built-in function 'sprintf' [-Wbuiltin-declaration-mismatch]
   42 |         sprintf(b,"%11d\n%11d\n",v0,v1);
      |         ^~~~~~~
main.c:42:9: note: include '<stdio.h>' or provide a declaration of 'sprintf'
main.c:42:17: warning: passing argument 1 of 'sprintf' from incompatible pointer type [-Wincompatible-pointer-types]
   42 |         sprintf(b,"%11d\n%11d\n",v0,v1);
      |                 ^
      |                 |
      |                 long int *
main.c:42:17: note: expected 'char *' but argument is of type 'long int *'
main.c: In function 'f1':
main.c:54:7: warning: type of 'v' defaults to 'int' [-Wimplicit-int]
   54 | long* f1(wp,v,i,e)
      |       ^~
main.c:54:7: warning: type of 'i' defaults to 'int' [-Wimplicit-int]
main.c:54:7: warning: type of 'e' defaults to 'int' [-Wimplicit-int]
main.c:58:9: warning: incompatible implicit declaration of built-in function 'sprintf' [-Wbuiltin-declaration-mismatch]
   58 |         sprintf(b,"  0\n%11d\n",v);
      |         ^~~~~~~
main.c:58:9: note: include '<stdio.h>' or provide a declaration of 'sprintf'
main.c:58:17: warning: passing argument 1 of 'sprintf' from incompatible pointer type [-Wincompatible-pointer-types]
   58 |         sprintf(b,"  0\n%11d\n",v);
      |                 ^
      | 

ソースコード

diff #
プレゼンテーションモードにする

#pragma GCC optimize("Ofast")
#pragma GCC target("avx2")
char*mmap();
#define RD(v) int v=0;{int _c;while(_c=*rp++-48,_c>=0)v=v*10+_c;}
long wbuf[1<<25];
#define MD 1000000007
long modpow(long a, long b, long m){
long r=1;
while(b){
if(b&1){
r=r*a%m;
}
b>>=1;
a=a*a%m;
}
return r;
}
int inverse(int a){
int b=MD;
int u=1;
int v=0;
while(b){
int q=a/b,t;
t=b, b=a-q*b, a=t;
t=v, v=u-q*v, u=t;
}
if(u<0){
u+=MD;
}
return u;
}
long* f2(wp,v0,v1,i,e)
long*wp;
{
long b[3];
sprintf(b,"%11d\n%11d\n",v0,v1);
long b0=b[0];
long b1=b[1];
long b2=b[2];
for(i+=i&1;i<e;i+=2){
*wp++=b0;
*wp++=b1;
*wp++=b2;
}
return wp;
}
long* f1(wp,v,i,e)
long*wp;
{
long b[2];
sprintf(b," 0\n%11d\n",v);
long b0=b[0];
long b1=b[1];
for(i+=i&1;i<e;i+=2){
*wp++=b0;
*wp++=b1;
}
return wp;
}
main(){
char*rp=mmap(0l,1l<<28,1,2,0,0ll);
RD(n);
RD(k);
int r=modpow(2,k-1,n);
int q=(modpow(2,k-1,MD)-r+MD)%MD*inverse(n)*(n&1?2:4)%MD;
int d=modpow((MD+1)/2,k,MD);
q=1l*q*d%MD;
r*=2;
long*wp=wbuf;
if(n&1){
if(n<r){
r-=n;
q=(q+d)%MD;
int q0=q;
int q1=(q+d)%MD;
if(r<n-r){
wp=f2(wp,q1,q0,0,r);
wp=f2(wp,q0,q0,r,n-r);
wp=f2(wp,q0,q1,n-r,n);
}else{
wp=f2(wp,q1,q0,0,n-r);
wp=f2(wp,q1,q1,n-r,r);
wp=f2(wp,q0,q1,r,n);
}
}else{
int q0=q;
int q1=(q+d)%MD;
if(r<n-r){
wp=f2(wp,q0,q1,0,r);
wp=f2(wp,q0,q0,r,n-r);
wp=f2(wp,q1,q0,n-r,n);
}else{
wp=f2(wp,q0,q1,0,n-r);
wp=f2(wp,q1,q1,n-r,r);
wp=f2(wp,q1,q0,r,n);
}
}
write(1,wbuf,(char*)wp-(char*)wbuf-12);
}else{
if(n<r){
r-=n;
q=(q+d)%MD;
q=(q+d)%MD;
}
int q0=q;
int q1=(q0+d)%MD;
int q2=(q1+d)%MD;
if(r<n-r){
wp=f1(wp,q1,0,r);
wp=f1(wp,q0,r,n-r);
wp=f1(wp,q1,n-r,n);
}else{
wp=f1(wp,q1,0,n-r);
wp=f1(wp,q2,n-r,r);
wp=f1(wp,q1,r,n);
}
write(1,wbuf,(char*)wp-(char*)wbuf);
}
_exit(0);
}
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