結果

問題 No.2212 One XOR Matrix
ユーザー tails
提出日時 2023-02-15 18:04:55
言語 C90
(gcc 12.3.0)
結果
AC  
実行時間 8 ms / 2,000 ms
コード長 1,381 bytes
コンパイル時間 1,018 ms
コンパイル使用メモリ 33,280 KB
実行使用メモリ 15,496 KB
最終ジャッジ日時 2024-07-18 02:25:55
合計ジャッジ時間 2,676 ms
ジャッジサーバーID
（参考情報） 		judge4 / judge3
このコードへのチャレンジ
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ファイルパターン 結果
sample AC * 2
other AC * 8
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 ‘mkwd’:
main.c:13:20: warning: multi-character character constant [-Wmultichar]
   13 |         unsigned v='0000';
      |                    ^~~~~~
main.c: At top level:
main.c:33:7: warning: type defaults to ‘int’ in declaration of ‘a4x4’ [-Wimplicit-int]
   33 | const a4x4[4][4]={
      |       ^~~~
main.c: In function ‘main’:
main.c:47:17: warning: implicit declaration of function ‘read’ [-Wimplicit-function-declaration]
   47 |                 read(0,rbuf,sizeof rbuf);
      |                 ^~~~
main.c:52:17: warning: implicit declaration of function ‘printf’ [-Wimplicit-function-declaration]
   52 |                 printf("-1");
      |                 ^~~~~~
main.c:1:1: note: include ‘<stdio.h>’ or provide a declaration of ‘printf’
  +++ |+#include <stdio.h>
    1 | #pragma GCC optimize("Ofast")
main.c:52:17: warning: incompatible implicit declaration of built-in function ‘printf’ [-Wbuiltin-declaration-mismatch]
   52 |                 printf("-1");
      |                 ^~~~~~
main.c:52:17: note: include ‘<stdio.h>’ or provide a declaration of ‘printf’
main.c:53:17: warning: implicit declaration of function ‘exit’ [-Wimplicit-function-declaration]
   53 |                 exit(0);
      |                 ^~~~
main.c:1:1: note: include ‘<stdlib.h>’ or provide a declaration of ‘exit’
  +++ |+#include <stdlib.h>
    1 | #pragma GCC optimize("Ofast")
main.c:53:17: warning: incompatible implicit declaration of built-in function ‘exit’ [-Wbuiltin-declaration-mismatch]
   53 |                 exit(0);
      |                 ^~~~
main.c:53:17: note: include ‘<stdlib.h>’ or provide a declaration of ‘exit’
main.c:95:17: warning: implicit declaration of function ‘write’ [-Wimplicit-function-declaration]
   95 |                 write(1,wp,wbuf+sizeof wbuf-wp);
      |                 ^~~~~
main.c:97:9: warning: implicit declaration of function ‘_exit’ [-Wimplicit-functio

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")
#define rd() ({long _v=0,_c;while(_c=*rp++-48,_c>=0)_v=_v*10+_c;_v;})
#define rep(v,e) for(long v=0;v<e;++v)
#define rep4(v,s,e,t) for(long v=s;v<e;v+=t)
char wbuf[1<<25];
unsigned wd[10000];
char wdlz[10000];
void mkwd(){
    unsigned v='0000';
    long i=0;
    rep(a,10){
        rep(b,10){
            rep(c,10){
                rep(d,10){
                    wd[i++]=v;
                    v+=1<<24;
                }
                v+=(1<<16)-(10<<24);
            }
            v+=(1<<8)-(10<<16);
        }
        v+=(1<<0)-(10<<8);
    }
    rep(j,1000) wdlz[j]=1;
    rep(j,100) wdlz[j]=2;
    rep(j,10) wdlz[j]=3;
}
const a4x4[4][4]={
{7,14,0,8},
{4,12,2,11},
{15,9,6,1},
{13,10,5,3},
};
int a[1024][1024];
int main(){
    mkwd();
    int n;
    {
        char rbuf[64];
        read(0,rbuf,sizeof rbuf);
        char*rp=rbuf;
        n=rd();
    }
    if(n==1){
        printf("-1");
        exit(0);
    }
    int w=1<<n;
    {
        int o=0;
        rep4(j,0,w,4){
            rep4(i,0,w,4){
                if(i==j){
                    rep(y,4){
                        rep(x,4){
                            a[j+y][i+x]=o+a4x4[y][x];
                        }
                    }
                    o+=16;
                }else{
                    rep(y,4){
                        rep(x,4){
                            a[j+y][i+x]=o++;
                        }
                    }
                }
            }
        }
    }
    {
        char*wp=wbuf+sizeof wbuf;
        rep(y,w){
            *--wp='\n';
            rep(x,w){
                unsigned v=a[y][x];
                if(v>=10000){
                    wp-=4;
                    *(unsigned*)wp=wd[v%10000];
                    v/=10000;
                }
                wp-=4;
                *(unsigned*)wp=wd[v];
                wp+=wdlz[v];
                *--wp=' ';
            }
            ++wp;
        }
        write(1,wp,wbuf+sizeof wbuf-wp);
    }
    _exit(0);
}
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