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May 20, 2025
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Create 3355. Zero Array Transformation I #799

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24 changes: 24 additions & 0 deletions 3355. Zero Array Transformation I
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Original file line number Diff line number Diff line change
@@ -0,0 +1,24 @@
class Solution {
public:
bool isZeroArray(vector<int>& nums, vector<vector<int>>& queries) {
int n=nums.size();
int m=queries.size();
vector<int>diff(n+1,0);

for(int i=0;i<m;i++){
int st=queries[i][0];
int end=queries[i][1];

diff[st]-=1;
diff[end+1]+=1;
}
int com=0;
for(int i=0;i<n;i++){
com+=diff[i];
if(com+nums[i]>0){
return false;
}
}
return true;
}
};
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