核心逻辑

根据身高范围判断对应的T恤尺寸：

• ≤150cm → "S"
• 151-160cm → "M"
• 161-170cm → "L"
• 171-180cm → "XL"
• ≥181cm → "XXL"

代码实现

C

#include <stdio.h>

int main() {
    int x;
    scanf("%d", &x);
    
    if (x <= 150) {
        printf("S\n");
    } else if (x <= 160) {
        printf("M\n");
    } else if (x <= 170) {
        printf("L\n");
    } else if (x <= 180) {
        printf("XL\n");
    } else {
        printf("XXL\n");
    }
    
    return 0;
}

C++

#include <bits/stdc++.h>
using namespace std;

int main() {
    int x;
    cin >> x;
    
    if (x <= 150) {
        cout << "S" << endl;
    } else if (x <= 160) {
        cout << "M" << endl;
    } else if (x <= 170) {
        cout << "L" << endl;
    } else if (x <= 180) {
        cout << "XL" << endl;
    } else {
        cout << "XXL" << endl;
    }
    
    return 0;
}

Python

x = int(input())

if x <= 150:
    print("S")
elif x <= 160:
    print("M")
elif x <= 170:
    print("L")
elif x <= 180:
    print("XL")
else:
    print("XXL")