draft

programs/calc/info.json

@@ -1,10 +1,10 @@
 {
-  "language": "",
-  "name": "",
-  "description": "",
+  "language": "C",
+  "name": "簡易電卓",
+  "description": "2つの実数を入力し、四則演算を指定し、小数点6桁で結果を表示する。0 divも考慮すること。",
   "output": {
-    "type": "screenshot | text",
-    "content": ""
+    "type": "screenshot",
+    "content": "./assets/calc.png"
   },
   "note": ""
 }

programs/calc/main.c

@@ -0,0 +1,48 @@
+#include <stdio.h>
+
+#define ADD 1
+#define SUB 2
+#define MUL 3
+#define DIV 4
+
+int main(void) {
+    double a, b;
+    int op;
+
+    printf("Input first number: ");
+    scanf("%lf", &a);
+    printf("Input second number: ");
+    scanf("%lf", &b);
+
+    printf("Select Operation:\n"
+           "[1]: Addition\n"
+           "[2]: Subtraction\n"
+           "[3]: Multiplication\n"
+           "[4]: Division\n"
+           "> ");
+    scanf("%d", &op);
+
+    switch (op) {
+        case ADD:
+            printf("ANS: %lf\n", a + b);
+            break;
+        case SUB:
+            printf("ANS: %lf\n", a - b);
+            break;
+        case MUL:
+            printf("ANS: %lf\n", a * b);
+            break;
+        case DIV:
+            if (b == 0.0) {
+                puts("Zero Division");
+                return 1;
+            }
+            printf("ANS: %lf\n", a / b);
+            break;
+        default:
+            puts("Undefined Operation");
+            return 1;
+    }
+
+    return 0;
+}