\u89c4\u5219\u602a\u8c08\uff1a\u4e24\u4e2a\u4f4d\u6570\u4e3a$10^4$\u7684\u6574\u6570\u76f8\u4e58\u5e76\u4e0d\u4f1a\u5f97\u5230\u4e00\u4e2a$10^8$\u4f4d\u6570\u3002<\/p>\n\n\n\n
\u6b63\u5982$\\lg{ab} \\neq \\lg{a} \\times \\lg{b}$\u3002<\/s><\/p>\n\n\n\n
\u8d34\u4e00\u4e2a\u4ee3\u7801\uff0c\u8be5\u7a0b\u5e8f\u4f1a\u8f93\u51fa$a+b\u3001a-b\u3001a*b\u3001a\/b\u3001a\\%b$\u7684\u503c\u3002<\/p>\n\n\n\n
\u4f18\u5316\u4ec0\u4e48\u7684\u2026\u2026\u4ee5\u540e\u518d\u8bf4\u5427\uff01<\/p>\n\n\n\n
#include<cstdio>\n#include<cstring>\nchar a[10001],b[10001],cpy[10001],t;\nint len,lena,lenb,pos,c[20001],aheadzero=0,bheadzero=0;\nbool flag,big;\nbool compare(char x[],char y[],int res,int jumphead)\n{\n\tint xheadzero=0,yheadzero=0,lenx,leny;\n\tif(!jumphead)\n\t{\n\t\tfor(int i=0;i<strlen(x);i++)\n\t\t{\n\t\t\tif(x[i]!='0') break;\n\t\t\tif(x[i]=='0') xheadzero=i+1;\n\t\t}\n\t\tif(xheadzero)\n\t\t{\n\t\t\tlenx=strlen(x);\n\t\t\tfor(int i=xheadzero;i<lenx;i++) x[i-xheadzero]=x[i];\n\t\t\tfor(int i=lenx-xheadzero;i<lenx;i++) x[i]=0;\n\t\t}\n\t\tfor(int i=0;i<strlen(y);i++)\n\t\t{\n\t\t\tif(y[i]!='0') break;\n\t\t\tif(y[i]=='0') yheadzero=i+1;\n\t\t}\n\t\tif(yheadzero)\n\t\t{\n\t\t\tleny=strlen(y);\n\t\t\tfor(int i=yheadzero;i<leny;i++) y[i-yheadzero]=y[i];\n\t\t\tfor(int i=leny-yheadzero;i<leny;i++) y[i]=0;\n\t\t}\n\t}\n\tlenx=strlen(x),leny=strlen(y);\n\tif(lenx>leny) return true;\n\tif(lenx<leny) return false;\n\tif(res)\n\t{\n\t\tfor(int i=lenx-1;i>=0;i--)\n\t\t{\n\t\t\tif(x[i]==y[i]) continue;\n\t\t\tif(x[i]<y[i]) return false;\n\t\t\telse return true;\n\t\t}\n\t}\n\telse\n\t{\n\t\tfor(int i=0;i<lenx;i++)\n\t\t{\n\t\t\tif(x[i]==y[i]) continue;\n\t\t\tif(x[i]<y[i]) return false;\n\t\t\telse return true;\n\t\t}\n\t}\n\treturn true;\n}\nint main()\n{\n\tscanf(\"%s%s\",a,b);\n\tfor(int i=0;i<strlen(a);i++)\n\t{\n\t\tif(a[i]!='0') break;\n\t\tif(a[i]=='0') aheadzero=i+1;\n\t}\n\tif(aheadzero)\n\t{\n\t\tlen=strlen(a);\n\t\tfor(int i=aheadzero;i<len;i++) a[i-aheadzero]=a[i];\n\t\tfor(int i=len-aheadzero;i<len;i++) a[i]=0;\n\t}\n\tfor(int i=0;i<strlen(b);i++)\n\t{\n\t\tif(b[i]!='0') break;\n\t\tif(b[i]=='0') bheadzero=i+1;\n\t}\n\tif(bheadzero)\n\t{\n\t\tlen=strlen(b);\n\t\tfor(int i=bheadzero;i<len;i++) b[i-bheadzero]=b[i];\n\t\tfor(int i=len-bheadzero;i<len;i++) b[i]=0;\n\t}\n\tlena=strlen(a),lenb=strlen(b);\n\tlen=(lena>lenb?lena:lenb);\n\tfor(int i=0;i<lena\/2;i++) t=a[i],a[i]=a[lena-i-1],a[lena-i-1]=t;\n\tfor(int i=0;i<lenb\/2;i++) t=b[i],b[i]=b[lenb-i-1],b[lenb-i-1]=t;\n\tfor(int i=0;i<len;i++)\n\t{\n\t\tc[i+1]+=((a[i]>'0'?a[i]-'0':0)+(b[i]>'0'?b[i]-'0':0)+c[i])\/10;\n\t\tc[i]=((a[i]>'0'?a[i]-'0':0)+(b[i]>'0'?b[i]-'0':0)+c[i])%10;\n\t}\n\tflag=true;\n\tfor(int i=len+1;i>=0;i--)\n\t{\n\t\tif(!c[i]&&flag) continue;\n\t\tprintf(\"%d\",c[i]);\n\t\tflag=false;\n\t}\n\tprintf(\"\\n\");\n\tmemset(c,0,sizeof(c));\n\tbig=compare(a,b,0,1);\n\tif(!big) printf(\"-\"); \n\tfor(int i=0;i<len;i++)\n\t{\n\t\tc[i]+=(big?((a[i]>'0'?a[i]-'0':0)-(b[i]>'0'?b[i]-'0':0)):((b[i]>'0'?b[i]-'0':0)-(a[i]>'0'?a[i]-'0':0)));\n\t\tif(c[i]<0) c[i]+=10,c[i+1]--;\n\t}\n\tflag=true;\n\tfor(int i=len;i>=0;i--)\n\t{\n\t\tif(!c[i]&&flag&&i) continue;\n\t\tprintf(\"%d\",c[i]);\n\t\tflag=false;\n\t}\n\tmemset(c,0,sizeof(c));\n\tprintf(\"\\n\");\n\tfor(int i=0;i<lena;i++)\n\t{\n\t\tfor(int j=0;j<lenb;j++)\n\t\t{\n\t\t\tc[i+j+1]+=((a[i]>'0'?a[i]-'0':0)*(b[j]>'0'?b[j]-'0':0)+c[i+j])\/10;\n\t\t\tc[i+j]=((a[i]>'0'?a[i]-'0':0)*(b[j]>'0'?b[j]-'0':0)+c[i+j])%10;\n\t\t}\n\t}\n\tflag=true;\n\tfor(int i=lena+lenb;i>=0;i--)\n\t{\n\t\tif(!c[i]&&flag&&i) continue;\n\t\tprintf(\"%d\",c[i]);\n\t\tflag=false;\n\t}\n\tmemset(c,0,sizeof(c));\n\tprintf(\"\\n\");\n\tif(!big)\n\t{\n\t\tprintf(\"0\\n\");\n\t\tfor(int i=lena-1;i>=0;i--) printf(\"%c\",a[i]);\n\t\treturn 0;\n\t}\n\tfor(int i=0;i<lena\/2;i++) t=a[i],a[i]=a[lena-i-1],a[lena-i-1]=t;\n\tfor(int i=0;i<lenb\/2;i++) t=b[i],b[i]=b[lenb-i-1],b[lenb-i-1]=t;\n\tpos=-1;\n\tfor(int i=lenb-1;i<lena;i++)\n\t{\n\t\tstrncpy(cpy,a,i+1);\n\t\tpos++;\n\t\twhile(compare(cpy,b,0,0))\n\t\t{\n\t\t\tfor(int j=lenb-1;j>=0;j--)\n\t\t\t{\n\t\t\t\ta[i-(lenb-1-j)]-=b[j];\n\t\t\t\ta[i-(lenb-1-j)]+='0';\n\t\t\t\tif(a[i-(lenb-1-j)]<'0') a[i-(lenb-1-j)]+=10,a[i-(lenb-1-j)-1]--;\n\t\t\t}\n\t\t\tc[pos]++;\n\t\t\tstrncpy(cpy,a,i+1);\n\t\t}\n\t}\n\tif(pos<0) pos=0;\n\tflag=true;\n\tfor(int i=0;i<=pos;i++)\n\t{\n\t\tif(!c[i]&&flag&&i!=pos) continue;\n\t\tprintf(\"%d\",c[i]);\n\t\tflag=false;\n\t}\n\tprintf(\"\\n\");\n\tflag=true;\n\tfor(int i=0;i<lena;i++)\n\t{\n\t\tif(a[i]=='0'&&flag&&i!=lena-1) continue;\n\t\tprintf(\"%c\",a[i]);\n\t\tflag=false;\n\t}\n\treturn 0;\n}<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"\u89c4\u5219\u602a\u8c08\uff1a\u4e24\u4e2a\u4f4d\u6570\u4e3a$10^4$\u7684\u6574\u6570\u76f8\u4e58\u5e76\u4e0d\u4f1a\u5f97\u5230\u4e00\u4e2a$10^8$\u4f4d\u6570\u3002 \u6b63\u5982$\\lg{ab} \\neq \\lg{a} \\tim …<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"emotion":"","emotion_color":"","title_style":"","license":"","footnotes":""},"categories":[8,1],"tags":[],"class_list":["post-174","post","type-post","status-publish","format-standard","hentry","category-oi","category-uncategorized"],"_links":{"self":[{"href":"https:\/\/www.starluo.top\/index.php?rest_route=\/wp\/v2\/posts\/174","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.starluo.top\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.starluo.top\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.starluo.top\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.starluo.top\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=174"}],"version-history":[{"count":2,"href":"https:\/\/www.starluo.top\/index.php?rest_route=\/wp\/v2\/posts\/174\/revisions"}],"predecessor-version":[{"id":176,"href":"https:\/\/www.starluo.top\/index.php?rest_route=\/wp\/v2\/posts\/174\/revisions\/176"}],"wp:attachment":[{"href":"https:\/\/www.starluo.top\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=174"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.starluo.top\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=174"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.starluo.top\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=174"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}