Algoritmo de valida\u00e7\u00e3o de um NIF em C++<\/p>\n\n\n
\n#include <iostream>\n\nint nif, n, nif_d[8], resto, dig_controlo, verificacao;\nint resultado=0;\n\nint main(){\n printf("Insira o seu NIF \\n");\n scanf("%d",&nif);\n\n \/\/Separa\u00e7\u00e3o de d\u00edgitos num array\n for(n=9;n>=1;n--){\n nif_d[n]=nif%10;\n nif\/=10;\n }\n\n \/\/Atribui o \u00faltimo d\u00edgito \u00e0 vari\u00e1vel verificacao\n verificacao = nif_d[9];\n\n \/\/Verificar se o NIF possu\u00ed 9 d\u00edgitos e consequente verifica\u00e7\u00e3o dos primeiros d\u00edgitos\n if((nif<=999999999||nif>99999999)&&((nif_d[1]==1||nif_d[1]==2||nif_d[1]==3)||(nif_d[1]==4&&nif_d[2]==5)||(nif_d[1]==5)||(nif_d[1]==6)||(nif_d[1]==7&&nif_d[2]==0)||(nif_d[1]==7&&nif_d[2]==4)||(nif_d[1]==7&&nif_d[2]==5)||(nif_d[1]==7&&nif_d[2]==1)||(nif_d[1]==7&&nif_d[2]==2)||(nif_d[1]==7&&nif_d[2]==7)||(nif_d[1]==7&&nif_d[2]==8)||(nif_d[1]==7&&nif_d[2]==9)||(nif_d[1]==8)||(nif_d[1]==9&&nif_d[2]==0)||(nif_d[1]==9&&nif_d[2]==1)||(nif_d[1]==9&&nif_d[2]==8)||(nif_d[1]==9&&nif_d[2]==9))){\n\n \/\/Calcular o valor da soma da multiplica\u00e7\u00e3o dos d\u00edgitos\n for(n=9;n>=2;n--){\n resultado+=nif_d[10-n]*n;\n }\n\n \/\/Calcular o valor do resto\n resto=resultado%11;\n\n \/\/C\u00e1lculo do d\u00edgito de controlo\n if(resto<2){\n dig_controlo=0;\n }else{\n dig_controlo=11-resto;\n }\n\n \/\/Verifica\u00e7\u00e3o com o d\u00edgito de controlo\n if(dig_controlo==verificacao){\n printf("O NIF \u00e9 v\u00e1lido\\n");\n }else{\n printf("O NIF \u00e9 inv\u00e1lido\\n");\n }\n }else{\n printf("O NIF \u00e9 inv\u00e1lido\\n");\n }\n}\n<\/pre><\/div>","protected":false},"excerpt":{"rendered":"Algoritmo de valida\u00e7\u00e3o de um NIF em C++<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_crdt_document":"","footnotes":""},"categories":[2,12,19],"tags":[],"class_list":["post-595","post","type-post","status-publish","format-standard","hentry","category-ciencia","category-informatica","category-programacao"],"_links":{"self":[{"href":"https:\/\/www.cesariogarcia.com\/index.php?rest_route=\/wp\/v2\/posts\/595","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.cesariogarcia.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.cesariogarcia.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.cesariogarcia.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.cesariogarcia.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=595"}],"version-history":[{"count":30,"href":"https:\/\/www.cesariogarcia.com\/index.php?rest_route=\/wp\/v2\/posts\/595\/revisions"}],"predecessor-version":[{"id":694,"href":"https:\/\/www.cesariogarcia.com\/index.php?rest_route=\/wp\/v2\/posts\/595\/revisions\/694"}],"wp:attachment":[{"href":"https:\/\/www.cesariogarcia.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=595"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.cesariogarcia.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=595"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.cesariogarcia.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=595"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}