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3133. 数组最后一个元素的最小值.cpp
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3133. 数组最后一个元素的最小值.cpp
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class Solution {
public:
long long minEnd(int n, int x) {
long long ans = 0;
vector<int>bits(64,0);
int temp = x;
int pos = 63;
while(temp > 0){
bits[pos] = temp%2;
temp = temp /2;
pos--;
}
vector<int>temp2(32,0);
temp = n-1;
pos = 31;
while(temp > 0){
temp2[pos] = temp%2;
temp = temp /2;
pos--;
}
// cout<<"Original Number : ";
// for(auto i :bits) cout<<i<<" ";
// cout<<endl;
// cout<<"Original Number-1: ";
// for(auto i :temp2) cout<<i<<" ";
// cout<<endl;
pos = 63;
int j = 31;
int i = 63;
while(j > 0){
if(bits[i] != 1){
bits[i] = temp2[j];
i--;
j--;
}else i--;
}
// cout<<"Original Number : ";
// for(auto i :bits) cout<<i<<" ";
// cout<<endl;
int val = 0;
for(int i = 63; i>=0; i--){
ans = ans + bits[i] * pow(2,val);
val++;
}
return ans;
}
};