Submission #647980

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Source Code Expand

p[1<<17];R(a){return p[a]-a?(p[a]=R(p[a])):a;}x=1<<17;main(y){for(gets(p);p[x]=--x;);for(;~scanf("%d%d%d",p,&x,&y);!*p?p[x]=y:puts(x-y?"NO":"YES"))x=R(x),y=R(y);exit(0);}

Submission Info

Compile Error

./Main.c:1:1: warning: data definition has no type or storage class
 p[1<<17];R(a){return p[a]-a?(p[a]=R(p[a])):a;}x=1<<17;main(y){for(gets(p);p[x]=--x;);for(;~scanf("%d%d%d",p,&x,&y);!*p?p[x]=y:puts(x-y?"NO":"YES"))x=R(x),y=R(y);exit(0);}
 ^
./Main.c:1:47: warning: data definition has no type or storage class
 p[1<<17];R(a){return p[a]-a?(p[a]=R(p[a])):a;}x=1<<17;main(y){for(gets(p);p[x]=--x;);for(;~scanf("%d%d%d",p,&x,&y);!*p?p[x]=y:puts(x-y?"NO":"YES"))x=R(x),y=R(y);exit(0);}
                                               ^
./Main.c: In function ‘main’:
./Main.c:1:92: warning: incompatible implicit declaration of built-in function ‘scanf’
 p[1<<17];R(a){return p[a]-a?(p[a]=R(p[a])):a;}x=1<<17;main(y){for(gets(p);p[x]=--x;);for(;~scanf("%d%d%d",p,&x,&y);!*p?p[x]=y:puts(x-y?"NO":"YES"))x=R(x),y=R(y);exit(0);}
                                                                                            ^
./Main.c:1:162: warning: incompatible implicit declaration of built-in function ‘exit’
 p[1<<17]...

Judge Result