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@@ -1632,7 +1632,24 @@ status: new
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=== "C"
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```c title="recursion.c"
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[class]{}-[func]{forLoopRecur}
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/* 使用迭代模拟递归 */
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int forLoopRecur(int n) {
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int stack[1000]; // 借助一个大数组来模拟栈
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int top = 0;
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int res = 0;
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// 递:递归调用
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for (int i = n; i > 0; i--) {
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// 通过“入栈操作”模拟“递”
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stack[top++] = i;
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}
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// 归:返回结果
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while (top >= 0) {
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// 通过“出栈操作”模拟“归”
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res += stack[top--];
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}
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// res = 1+2+3+...+n
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return res;
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}
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```
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=== "Zig"
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@@ -1027,7 +1027,11 @@ $$
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=== "Zig"
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```zig title="space_complexity.zig"
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[class]{}-[func]{function}
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// 函数
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fn function() i32 {
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// 执行某些操作
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return 0;
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}
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// 常数阶
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fn constant(n: i32) void {
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