Pattern Problems in C++

Decrementing Block of size (n) §

f(3) = 321 321 321

f(2) = 21 21

int main(){
	int n = 3;
	//cin >> n;
	int j = 1;
	while (j <= n){
		int i = n;
		while (i > 0){
			cout << i;
			i = i - 1;
		};
		cout<<endl;
		j = j + 1;
	}
	return 0;
}

Block of size n of incrementing numbers §

int main(){
	int n = 3;
	int i = 1;
	int inc = 1;
	while (i <= n){
		int j = 1;
		while (j<=n){
			cout<<inc<<" ";
			inc = inc + 1;
			j = j + 1;
		}
	i = i + 1;
	cout << endl;
	};
	return 0;
}

Triangle Pattern §

For star

int main(){
	int n = 10;
	int i = 1;
	while (i <= n){
		int count = 1;
		while (count <= i){    // Print * i number of times
			cout << "*";
			count++;
		};
		cout<< endl;
		i++;
	};
	return 0;
}

For num of rows

int main(){
	int n = 10;
	int i = 1;
	while (i <= n){
		int count = 1;
		while (count <= i){    // Print * i number of times
			cout << i;
			count++;
		};
		cout<< endl;
		i++;
	};
	return 0;
}

For this

int main(){
	int n = 4;
	int r = 1;
	while (r <= 4){
		int c = 1;
		int num = r;
		while(c <= r){
			cout << num;
			num++;
			c++;
		};
		r++;
		cout << endl;
	}
	return 0;
}

• Do this without int num = r#task

Blocked Letters Itteration §

%%🖋 Edit in Excalidraw, and the dark exported image%%

int main(){
	int n = 3;
	char chr = 65;
	int r = 1;
	while (r <= 3){
		int c = 1;
		while(c <= 3){
			cout << chr << " ";
			c++;
		};
		chr++;
		cout << endl;
		r++;
	};
	return 0;
}

%%🖋 Edit in Excalidraw, and the dark exported image%%

int main(){
	int n = 3;
	int r = 1;
	while (r <= n){
		char ch = 65;
		int c = 1;
		while(c <= n){
			cout << ch << " ";
			c++;
			ch++;
		};
		r++;
		cout << endl;
	};
	return 0;
}

%%🖋 Edit in Excalidraw, and the dark exported image%%

int main(){
	int n = 3;
	int r = 1;
	char ch = 65;
	while(r <= n){
		int c = 1;
		while (c <= n){
			cout << ch << " ";
			c++;
			ch++;
		};
		cout << endl;
		r++;
	};
	return 0;
}

%%🖋 Edit in Excalidraw, and the dark exported image%%

int main(){
	int n = 3;
	int r = 1;
	char ch = 65;
	while (r <= n){
		int c = 1;
		while (c <= n){
			char chr = ch+c-1;
			cout << chr << " ";
			c++;
		};
		cout << endl;
		ch++;
		r++;
	};
	return 0;
}

%%🖋 Edit in Excalidraw, and the dark exported image%%

int main() {
  int n;
//  char ch = 65;
  int i = 1;
  cin >> n;
  while (i <= n) {
    int c = 1;
    while (c <= i) {
	  char ch = 65 + i - 1;
      cout << ch << ' ';
      c++;
    };
    cout << endl;
   // ch++;
    i++;
  };
  return 0;
};

Alphabetical Triangles §

%%🖋 Edit in Excalidraw, and the dark exported image%%

int main(){
	int n = 4;
	int r = 1;
	while (r <= n){
		int c = 1;
		char ch = ('A' + n - r);
		while(c <= r){
			cout << ch << " ";
			c++;
			ch++;
		};
		cout << endl;
		r++;
	};
	return 0;
};

Patterns with Spaces §

int main(){
	int n = 4;
	char sp = 32;
	int r = 1;
	while (r <= n){
		int c = 1;
		int i = 1;
		while (i <= (n - r)){
			cout << " ";
			i++;
		};
		while(c <= r){
			cout<< "*";
			c++;
		};
		cout << endl;
		r++;
	};
	return 0;
}

int main(){
   int n = 4;
   int r = 1;
   while (r <= n){
   	int c = 1;
   	int num = 1;
   	int sp = 1;
   	// Spaces
   	while (sp <= (n-r)){
   		cout << " ";
   		sp++;
   	};
 
 
   	// Increment
   	while (c <= r){
   		cout << num;
   		c++;
   		num++;
   	};
   	num--;
 
   	// Decrement
   	while (num > 1){
   		num--;
   		cout << num;
   	}
   	cout << endl;
   	r++;
   };
   return 0;
}

int main(){
	int n = 5;
	int r = 1;
	while (r <= n){
		int c = 1;
			while (c <= (n - r + 1)){
				cout << c;
				c++;
			};
		int i = 1;
			while ( i <= (r-1)*2){
				cout << "*";
				i++;
			};
			while (c > 1){
				c--;
				cout << c;
			};
		cout << endl;
		r++;
	};
	return 0;
};

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