用c语言实现1-2+3+4....+99-100

以下为示例代码：

#include <stdio.h>

int main() {
    for (int i = 1; i <= 100; i++) {
        if (i % 10 == 1 && i % 100 != 11) {
            printf("%d-st ", i);
        } else if (i % 10 == 2 && i % 100 != 12) {
            printf("%d-nd ", i);
        } else if (i % 10 == 3 && i % 100 != 13) {
            printf("%d-rd ", i);
        } else {
            printf("%d-th ", i);
        }
    }
    return 0;
}

输出结果为：

1-st 2-nd 3-rd 4-th 5-th 6-th 7-th 8-th 9-th 10-th 11-th 12-th 13-th 14-th 15-th 16-th 17-th 18-th 19-th 20-th 21-st 22-nd 23-rd 24-th 25-th 26-th 27-th 28-th 29-th 30-th 31-st 32-nd 33-rd 34-th 35-th 36-th 37-th 38-th 39-th 40-th 41-st 42-nd 43-rd 44-th 45-th 46-th 47-th 48-th 49-th 50-th 51-st 52-nd 53-rd 54-th 55-th 56-th 57-th 58-th 59-th 60-th 61-st 62-nd 63-rd 64-th 65-th 66-th 67-th 68-th 69-th 70-th 71-st 72-nd 73-rd 74-th 75-th 76-th 77-th 78-th 79-th 80-th 81-st 82-nd 83-rd 84-th 85-th 86-th 87-th 88-th 89-th 90-th 91-st 92-nd 93-rd 94-th 95-th 96-th 97-th 98-th 99-th 100-th