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anonymous
 3 years ago
You can use the "find()" function to find if a value exists inside of a vector as such:
(find(vector.begin(), vector.end(), alueToBeFound) != vector.end());
My question is, how do you perform this search in a twodimensional vector but only on one of the dimensions?
For instance, if I had "vector< vector<int> >" such that vector[i][j] existed how could I only search through the 'i' values and not the j's?
I'm wanting to store page reference strings in one of the columns and a timestamp in the other. However, when searching for a value I only want to check the page references not the t
anonymous
 3 years ago
You can use the "find()" function to find if a value exists inside of a vector as such: (find(vector.begin(), vector.end(), alueToBeFound) != vector.end()); My question is, how do you perform this search in a twodimensional vector but only on one of the dimensions? For instance, if I had "vector< vector<int> >" such that vector[i][j] existed how could I only search through the 'i' values and not the j's? I'm wanting to store page reference strings in one of the columns and a timestamp in the other. However, when searching for a value I only want to check the page references not the t

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KonradZuse
 3 years ago
Best ResponseYou've already chosen the best response.1To solve for only 1 of the variables do a for loop. for(int k = 0; k < i; k++) { //do something vector[k][j] or change k's to i's. }

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0This is what I ended up doing (already finished). However, after spending 5 hours finally getting all of my extremely inefficient code (so many loops..) to work, I realized I could have just created a class structure and been done in 20 minutes. FML.
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