#include<iostream> // cin\cout\endl #include<cstdio> //scanf()\printf() #include<cstring> // strcpy()\strcat()\strcmp()\strlen()\memset() #include<cmath> //sqrt()\pow()\abs()\ceil()\floor()\max()\min() using namespace std; int main(){ cout<<"*"<<endl; cout<<"**"<<endl; cout<<"***"<<endl; cout<<"****"<<endl; cout<<"*****"; return 0; }