小青青的技术之家

#include #include int main(int argc, char** argv) { // Initialize the MPI environment MPI_Init(NULL, NULL); // Get the number of processes int world_size; MPI_Comm_size(MPI_COM

bool mark [N];vector primeList; void sieve () {memset (mark, true, sizeof (mark));mark [0] = mark [1] = false;for ( int i = 4; i < N; i += 2 ) mark [i] = false;for ( int i = 3; i * i <=