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Description html markup shown to student | An example of a few things NOT to do on vectors |
Public permissions | |
Remarks Comments, history, license, etc. | |
Engine | |
Template / Reference solution |
using namespace std; int main() { vector<int> nums1; // 0-size "array" internally \[ nums1.resize(10); \show: // Can't access with [i] notation if array is not of that size // This should cause a crash for(int i=0; i < 10; i++){ nums1[i] = 0; } ]\ // better vector<int> nums2(10); // 10-size array initialized with default values/garbage // This now does work for(int i=0; i < 10; i++){ nums2[i] = 0; } // Back to the original, we can increase the size of the array with .resize() nums1.resize(10); // This now works for(int i=0; i < 10; i++){ nums1[i] = 0; } // Or if we have a blank vector or want to increase size of array // we can use .push_back() vector<int> nums3; // 0-size "array" internally // Can use push_back to add a value and increase array size if needed for(int i=0; i < 10; i++){ nums3.push_back(0); } return 0; } |
C++ test suite json list of stdin/args tests e.g. [{"stdin":"hi", "args":["4", "5"]}, {"stdin":"noargs"}] to just run once with no input use [{}] | [ {} ] |
Solution visibility | |
Is example? i.e., just a demo |
Note: problems are open-source by default (see 'Public permissions'). Assumed license for open problems is Creative Commons 4.0 Attribution-ShareAlike unless specified in 'Remarks'.