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IP.c
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IP.c
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#include<stdio.h>
#include<stdlib.h>
#include<string.h>
void check4(char *str){
int cnt=0,sign=0;
for(int i=0;i<strlen(str);i++){
if(str[i]=='.'){
int tmp=0;
if(cnt<4 && cnt>0){
for(int j=0;j<cnt;j++){
tmp=tmp*10+(str[i-cnt+j]-'0');
}
if(tmp>=256 || tmp<0){
printf("QAQ\n");
return;
}
cnt=0;
}
else {
printf("QAQ\n");
return;
}
sign++;
}
else if(str[i]>=48 && str[i]<=57){
if(cnt==0 && str[i]==48 && str[i+1]!='.'){
printf("QAQ\n");
return;
}
cnt++;
}
else{
printf("QAQ\n");
return;
}
}
if(sign==3 && cnt<4 && cnt>0){
printf("Valid IP\n");
}
else printf("QAQ\n");
}
void check6(char *str){
int cnt=0,sign=0;
for(int i=0;i<strlen(str);i++){
char now=str[i];
if(str[i]==':'){
if(cnt<5 && cnt>0){
cnt=0;
}
else{
printf("QAQ\n");
return;
}
sign++;
}
else if(now>=48&&now<=57 || now>=65&&now<=70 || now>=97&&now<=102){
cnt++;
}
else{
printf("QAQ\n");
return;
}
}
if(cnt<5&&cnt>0&&sign==7) printf("Valid IP\n");
else printf("QAQ\n");
}
int main(void){
int T;
scanf("%d",&T);
while(T--){
int num;
char str[51];
scanf("%d %s",&num,str);
if(num==4)check4(str);
else check6(str);
}
}