結果
問題 | No.1323 うしらずSwap |
ユーザー |
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提出日時 | 2020-12-20 01:38:47 |
言語 | C (gcc 13.3.0) |
結果 |
WA
|
実行時間 | - |
コード長 | 2,416 bytes |
コンパイル時間 | 337 ms |
コンパイル使用メモリ | 32,512 KB |
実行使用メモリ | 272,556 KB |
最終ジャッジ日時 | 2024-09-21 11:15:22 |
合計ジャッジ時間 | 12,884 ms |
ジャッジサーバーID (参考情報) |
judge4 / judge1 |
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ファイルパターン | 結果 |
---|---|
sample | AC * 3 |
other | AC * 37 WA * 22 |
コンパイルメッセージ
main.c:7:19: warning: no semicolon at end of struct or union 7 | struct{int y,x,z,d} q[16000000]; | ^ main.c:112:1: warning: return type defaults to 'int' [-Wimplicit-int] 112 | main(){ | ^~~~ main.c: In function 'main': main.c:113:9: warning: implicit declaration of function 'scanf' [-Wimplicit-function-declaration] 113 | scanf("%d%d%d%d%d%d",&h,&w,&ra,&ca,&rb,&cb); | ^~~~~ main.c:1:1: note: include '<stdio.h>' or provide a declaration of 'scanf' +++ |+#include <stdio.h> 1 | int h,w,ra,ca,rb,cb; main.c:113:9: warning: incompatible implicit declaration of built-in function 'scanf' [-Wbuiltin-declaration-mismatch] 113 | scanf("%d%d%d%d%d%d",&h,&w,&ra,&ca,&rb,&cb); | ^~~~~ main.c:113:9: note: include '<stdio.h>' or provide a declaration of 'scanf' main.c:121:17: warning: implicit declaration of function 'puts' [-Wimplicit-function-declaration] 121 | puts("-1"); | ^~~~ main.c:121:17: note: include '<stdio.h>' or provide a declaration of 'puts' main.c:122:17: warning: implicit declaration of function 'exit' [-Wimplicit-function-declaration] 122 | exit(0); | ^~~~ main.c:1:1: note: include '<stdlib.h>' or provide a declaration of 'exit' +++ |+#include <stdlib.h> 1 | int h,w,ra,ca,rb,cb; main.c:122:17: warning: incompatible implicit declaration of built-in function 'exit' [-Wbuiltin-declaration-mismatch] 122 | exit(0); | ^~~~ main.c:122:17: note: include '<stdlib.h>' or provide a declaration of 'exit' main.c:143:17: warning: incompatible implicit declaration of built-in function 'exit' [-Wbuiltin-declaration-mismatch] 143 | exit(0); | ^~~~ main.c:143:17: note: include '<stdlib.h>' or provide a declaration of 'exit' main.c:145:9: warning: implicit declaration of function 'printf' [-Wimplicit-function-declaration] 145 |
ソースコード
int h,w,ra,ca,rb,cb; char s[1333][1335]; int dp1[1333][1333]; int dp2[1333][1333][2]; struct{int y,x,z,d} q[16000000]; int qr,qw; void enq(int y,int x,int z,int d){ q[qw].y=y; q[qw].x=x; q[qw].z=z; q[qw].d=d; ++qw; } void f1(){ qr=qw=0; enq(ra,ca,0,1); while(qr<qw){ int y=q[qr].y; int x=q[qr].x; int d=q[qr].d; ++qr; if(s[y][x]=='.'&&dp1[y][x]==0){ dp1[y][x]=d; enq(y-1,x,0,d+1); enq(y+1,x,0,d+1); enq(y,x-1,0,d+1); enq(y,x+1,0,d+1); } } } void f2(int y,int x){ int d=dp1[y][x]; dp1[y][x]=-1; if(d==1){ }else if(dp1[y-1][x]==d-1){ f2(y-1,x); }else if(dp1[y+1][x]==d-1){ f2(y+1,x); }else if(dp1[y][x-1]==d-1){ f2(y,x-1); }else if(dp1[y][x+1]==d-1){ f2(y,x+1); } } void f3(){ qr=qw=0; enq(ra,ca,0,1); while(qr<qw){ int y=q[qr].y; int x=q[qr].x; int z=q[qr].z; int d=q[qr].d; ++qr; if(s[y][x]=='.'&&dp2[y][x][z]==0&&(z?!(y==ra&&x==ca):!(y==rb&&x==cb))){ dp2[y][x][z]=d; if(z==0&&dp1[y][x]>=0){ enq(y,x,1,d+1); } enq(y-1,x,z,d+1); enq(y+1,x,z,d+1); enq(y,x-1,z,d+1); enq(y,x+1,z,d+1); } } } int f4(int r,int c,int vy,int vx){ for(int y=0;y<h;++y){ for(int x=0;x<w;++x){ dp1[y][x]=0; } } qr=qw=0; { int y=r+vy; int x=c+vx; if(s[y][x]=='.'){ dp1[y][x]=1; if(s[y+vy][x+vx]=='.'){ enq(y+vy,x+vx,0,2); } if(s[y-vx][x+vy]=='.'){ enq(y-vx,x+vy,0,2); } if(s[y+vx][x-vy]=='.'){ enq(y+vx,x-vy,0,2); } } } while(qr<qw){ int y=q[qr].y; int x=q[qr].x; int d=q[qr].d; ++qr; if(s[y][x]=='.'&&dp1[y][x]==0){ dp1[y][x]=d; enq(y-1,x,0,d+1); enq(y+1,x,0,d+1); enq(y,x-1,0,d+1); enq(y,x+1,0,d+1); } } return dp1[r][c]; } main(){ scanf("%d%d%d%d%d%d",&h,&w,&ra,&ca,&rb,&cb); --ra;--ca;--rb;--cb; for(int y=0;y<h;++y){ scanf("%s",s[y]); } f1(); int d1=dp1[rb][cb]-1; if(d1<0){ puts("-1"); exit(0); } f2(rb,cb); f3(); int d2=dp2[rb][cb][1]-2; if(d2<0){ d2=3000000; } { int d; d=f4(ra,ca,-1,0);if(d>0&&d2>d+d1+2)d2=d+d1+2; d=f4(ra,ca,+1,0);if(d>0&&d2>d+d1+2)d2=d+d1+2; d=f4(ra,ca,0,-1);if(d>0&&d2>d+d1+2)d2=d+d1+2; d=f4(ra,ca,0,+1);if(d>0&&d2>d+d1+2)d2=d+d1+2; d=f4(rb,cb,-1,0);if(d>0&&d2>d+d1+2)d2=d+d1+2; d=f4(rb,cb,+1,0);if(d>0&&d2>d+d1+2)d2=d+d1+2; d=f4(rb,cb,0,-1);if(d>0&&d2>d+d1+2)d2=d+d1+2; d=f4(rb,cb,0,+1);if(d>0&&d2>d+d1+2)d2=d+d1+2; } if(d2==3000000){ puts("-1"); exit(0); } printf("%d",d1+d2); }