Greater Integers

input/code.cpp: In function 'int main()':
input/code.cpp:22:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
   for(ind=0;ind<num.size();ind++){
             ~~~^~~~~~~~~~~
input/code.cpp:25:11: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
   if(ind+1==num.size()){
      ~~~~~^~~~~~~~~~~~
input/code.cpp:30:17: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
    for(int i=0;i<num.size();++i){
                ~^~~~~~~~~~~
input/code.cpp:36:17: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
    for(int i=0;i<num.size();++i){
                ~^~~~~~~~~~~

#define MOD 1000000007
#include <bits/stdc++.h>
#include <numeric>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
using namespace __gnu_pbds;
using namespace std;

int main(){
	ios_base::sync_with_stdio(false);
	cin.tie(NULL);

	int T;
	cin>>T;
	for(int T_Case=1;T_Case<=T;++T_Case){
		string num,ans;
		int ind;
		long long int val;
		cin>>val;
		++val;
		num=to_string(val);
		for(ind=0;ind<num.size();ind++){
			if(num[ind]!=num[ind]+1) break;
		}
		if(ind+1==num.size()){
			ans=num;
		}
		else if(num[ind]>num[ind+1]){
			ans.resize(num.size());
			for(int i=0;i<num.size();++i){
				ans[i]=num[ind];
			}
		}
		else{
			ans.resize(num.size());
			for(int i=0;i<num.size();++i){
				ans[i]=num[ind]+1;
			}
		}
		cout<<ans<<'\n';
	}
}

Test 1

Group: 1, 2

Verdict: WRONG ANSWER

Test 2

Group: 2

Verdict: WRONG ANSWER