Level 2 : custom Sort on pairs int32_tmain(){vector<pairs<int,int>>arr={{1,2},{2,2},{8,6},{1,4},{8,2},{3,7},{8,4}};autocmpFirst=[](pair<int,int>a,pair<int,int>b){returna.first<b.first;};autocmpSecond=[](pair<int,int>a,pair<int,int>b){returna.second<b.s...
#rgb method is to convert colors to a character vector. E(g)$color = apply(c_scale(aon$flow/maxflow), 1, function(x) rgb(x[1]/255,x[2]/255,x[3]/255) ) set.seed(5) plot(g, edge.width = traffic$data$capacity/2000, edge.arrow.size = 0, main = "AON assignment") box(co...
Takes a sequence of tuple-like objects (anything that works with std::get) and unpacks each object into individual arguments for each function call. The below example takes a vector of pairs of ints, and passes them to a function expecting two ints, with the elements of the pair being ...
vector<string>ret; map<string,vector<int> >str_indexs;//trans strs to key (sorted string) and value (indexs of strs that have same key) pairsfor( size_t i =0; i < strs.size(); ++i ) {stringkey =strs[i]; std::sort(key.begin(), key.end()); str_indexs[key].push_ba...
plf::stack A drop-in replacement container for the std::stack container adaptor with better performance than std::vector and std::deque in a stack context. C++98/11/14/etc-compatible. (Src) zlib ring_span A lite implementation of Arthur O'Dwyer's ring_span, a.k.a. circular buffer ...
Wvector-operation-performance -Wvla -Wvla-larger-than=n -Wvolatile-register-var -Wwrite-strings -Wzero-as-null-pointer-constant -Whsa C and Objective-C-only Warning Options -Wbad-function-cast -Wmissing-declarations -Wmissing-parameter-type -Wmissing-prototypes -Wnested-externs -Wold-style-...
cl::desc("Format a range of this length (in bytes).\n" "Multiple ranges can be formatted by specifying\n" "several -offset and -length pairs.\n" "When only a single -offset is specified without\n" "-length, clang-format will format up to the end\n" ...
Example: a statically-sized span will fail to compile for containers that don't match the extent of the span.void print_three_ints(std::span<const int, 3> ints) { for (const auto n : ints) { std::cout << n << std::endl; } } print_three_ints(std::vector{ 1, 2, 3 }...
代码 3Sum Closest 32 算法珠玑 // 3Sum Closest // 先排序 ,然后左右夹逼// // Time Complexity : O(n^2), Space Complexity : O(1) class Solution { public: int threeSumClosest(vectorint nums, int target) { int result 0; int min_gap INT_MAX; sort(nums.begin(), nums.end()); for ...
So std::set::end is never invalidated, std::unordered_set::end is invalidated only on rehash(since C++11), std::vector::end is always invalidated (since it is always after the modified elements), and so on. There is one exception: an erasure which deletes the last element of a ...