today

jackdoe · Aug 4, 2023 · 1cecbe5 · 1cecbe5
1 parent d8ebe21
commit 1cecbe5
Showing 1 changed file with 93 additions and 0 deletions.
diff --git a/week-047.md b/week-047.md
@@ -448,3 +448,96 @@ now you can see we can call the function, but we cant go back in order to beep,
 so you can see we store the return address in r1 and then go back to where it points to
 
 
+
+## [DAY-351] tic tac toe
+
+another day, another tic tac toe
+
+```
+#include <stdio.h>
+
+void print_board(char *b) {
+    printf("%c %c %c\n",b[0], *(b + 1), b[2]);
+    printf("%c %c %c\n",b[3], b[4], b[5]);
+    printf("%c %c %c\n",b[6], b[7], b[8]);
+}
+int check_win(char *b){
+    if (b[0] != '-' && b[0] == b[1] && b[1] == b[2]) {
+        return 1; 
+    }
+    if (b[3] != '-'  && b[3] == b[4] && b[4] == b[5]) {
+        return 1;
+    }
+    if (b[0] != '-'  && b[0] == b[3] && b[3] == b[6]) {
+        return 1;
+    }
+    if (b[1] != '-'  && b[1] == b[4] && b[4] == b[7]) {
+        return 1;
+    }
+    if (b[2] != '-'  && b[2] == b[5] && b[5] == b[8]) {
+        return 1;
+    }
+    if (b[6] != '-'  && b[6] == b[7] && b[7] == b[8]) {
+        return 1;
+    }
+    if (b[0] != '-'  && b[0] == b[4] && b[4] == b[8]) {
+        return 1;
+    }
+    if (b[2] != '-'  && b[2] == b[4] && b[4] == b[6]) {
+        return 1;
+    }
+    return 0;
+}
+
+int main(void) {
+    char board[9] = {'-','-','-','-','-','-','-','-','-'};
+    char symbol = '0';
+
+
+    while(1) {
+        print_board(board);
+        char str[3];
+        printf("%c>",symbol);
+        scanf("%2s",str);
+        if (str[0] == 'a' && str[1] == '1') {   
+            board[0] = symbol;
+        }
+        if (str[0] == 'b' && str[1] == '1') {   
+            board[3] = symbol;
+        }
+        if (str[0] == 'c' && str[1] == '1') {   
+            board[6] = symbol;
+        }
+        if (str[0] == 'a' && str[1] == '2') {   
+            board[1] = symbol;
+        }
+        if (str[0] == 'a' && str[1] == '3') {   
+            board[2] = symbol;
+        }
+        if (str[0] == 'b' && str[1] == '2') {   
+            board[4] = symbol;
+        }
+        if (str[0] == 'b' && str[1] == '3') {   
+            board[5] = symbol;
+        }
+        if (str[0] == 'c' && str[1] == '2') {   
+            board[7] = symbol;
+        }
+        if (str[0] == 'c' && str[1] == '3') {   
+            board[8] = symbol;
+        }
+
+        if (check_win(board)) {
+            print_board(board);
+            printf("%c WINS\n", symbol);
+            break;
+        }
+
+        if (symbol == '0') {
+            symbol = 'X';
+        } else {
+            symbol = '0';
+        }
+    }
+}
+```