c++ rand()
#include <iostream> #include <cstdlib> //required for rand(), srand() #include <ctime> //required for time() using namespace std; int main() { srand(time(0)); //randomizing results... (using time as an input) const int totalNumbersGenerated = 30; const int minRange = 1, maxRange = 20; cout<<"\nPrinting "<<totalNumbersGenerated<<" random integer numbers (from "<<minRange<<" to "<<maxRange<<"):\n"; for(int i=1;i<=totalNumbersGenerated;i++){ //generating random number in specified range (inclusive) cout<<1+((rand () % maxRange) + minRange - 1)<<" "; } cout<<endl; return 0; }
cpp rand
std::srand(std::time(nullptr)); // set rand seed v1 = std::rand() % 100; // v1 in the range 0 to 99 v2 = std::rand() % 100 + 1; // v2 in the range 1 to 100 v3 = std::rand() % 30 + 1985; // v3 in the range 1985-2014
rand c++
#include <iostream> #include <time.h> using namespace std; int main() { srand(time(0)); cout<<rand()%100<<endl; //choose random numbers from 0 to 99 //create random integer value in range a to a+b (a+rand()b;) cout <<1+ rand() % 9 <<endl; //random numbers between 1 and 10 cout << 25+rand() % 25 <<endl; //random numbers between 25 and 50 }
rand() c++
v1 = rand() % 100; // v1 in the range 0 to 99 --Credit goes to Clever cowfish v2 = rand() % 100 + 1; // v2 in the range 1 to 100 v3 = rand() % 30 + 1985; // v3 in the range 1985-2014
rand() c++
version1 = std::rand() % 3; // it is in the range from 0 to 2 // 0 1 2 version2 = std::rand() % 5 + 2; // it is in the range from 2 to 6 // 2 3 4 5 6 version3 = std::rand() % 3 + 10; // it is in the range from 10 to 12 //first number is how much digits it will go second number is the digit it //starts on (including that digit) //negative version4 = std::rand() % 11 - 12; // it is in the range from -2 to -12
rand() c++
/* rand example */ #include <stdio.h> /* printf, scanf, puts, NULL */ #include <stdlib.h> /* srand, rand */ #include <time.h> /* time */ /* initialize random seed: */ srand (time(NULL)); /* generate number between 1 and 10: */ random_number = rand() % 10 + 1;
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