编号 题目 状态 分数 总时间 内存 代码 / 答案文件 提交者 提交时间
#8044 #10. 求和 Accepted 100 30 ms 348 K C++ / 224 B YING 2022-11-18 21:23:56
显示原始代码
#include <stdio.h>
int main() {
    int sign = 1, i = 1, n;
    double ans = 0.0, term = 1.0;
    scanf("%d", &n);
    for (i = 1; i <= n;) {
        ans += term;
        sign = -sign;
        i++;
        term = 1.0 * sign / i;
    }
    printf("%12.10f\n", ans);
    return 0;
}
子任务 #1
Accepted
得分:100
测试点 #1
Accepted
得分:100
用时:4 ms
内存:280 KiB

输入文件(1.in

1

答案文件(1.ans

1.0000000000

用户输出

1.0000000000

Special Judge 信息

Accepted | found '1.0000000', expected '1.0000000', error '0.0000000'

系统信息

Exited with return code 0
测试点 #2
Accepted
得分:100
用时:3 ms
内存:248 KiB

输入文件(2.in

2

答案文件(2.ans

0.5000000000

用户输出

0.5000000000

Special Judge 信息

Accepted | found '0.5000000', expected '0.5000000', error '0.0000000'

系统信息

Exited with return code 0
测试点 #3
Accepted
得分:100
用时:2 ms
内存:248 KiB

输入文件(3.in

279

答案文件(3.ans

0.6949360836

用户输出

0.6949360836

Special Judge 信息

Accepted | found '0.6949361', expected '0.6949361', error '0.0000000'

系统信息

Exited with return code 0
测试点 #4
Accepted
得分:100
用时:2 ms
内存:248 KiB

输入文件(4.in

350

答案文件(4.ans

0.6917206499

用户输出

0.6917206499

Special Judge 信息

Accepted | found '0.6917206', expected '0.6917206', error '0.0000000'

系统信息

Exited with return code 0
测试点 #5
Accepted
得分:100
用时:3 ms
内存:248 KiB

输入文件(5.in

4695

答案文件(5.ans

0.6932536655

用户输出

0.6932536655

Special Judge 信息

Accepted | found '0.6932537', expected '0.6932537', error '0.0000000'

系统信息

Exited with return code 0
测试点 #6
Accepted
得分:100
用时:3 ms
内存:248 KiB

输入文件(6.in

5426

答案文件(6.ans

0.6930550401

用户输出

0.6930550401

Special Judge 信息

Accepted | found '0.6930550', expected '0.6930550', error '0.0000000'

系统信息

Exited with return code 0
测试点 #7
Accepted
得分:100
用时:2 ms
内存:248 KiB

输入文件(7.in

6544

答案文件(7.ans

0.6930707805

用户输出

0.6930707805

Special Judge 信息

Accepted | found '0.6930708', expected '0.6930708', error '0.0000000'

系统信息

Exited with return code 0
测试点 #8
Accepted
得分:100
用时:2 ms
内存:248 KiB

输入文件(8.in

72894

答案文件(8.ans

0.6931403213

用户输出

0.6931403213

Special Judge 信息

Accepted | found '0.6931403', expected '0.6931403', error '0.0000000'

系统信息

Exited with return code 0
测试点 #9
Accepted
得分:100
用时:5 ms
内存:348 KiB

输入文件(9.in

743291

答案文件(9.ans

0.6931478532

用户输出

0.6931478532

Special Judge 信息

Accepted | found '0.6931479', expected '0.6931479', error '0.0000000'

系统信息

Exited with return code 0
测试点 #10
Accepted
得分:100
用时:4 ms
内存:248 KiB

输入文件(10.in

897646

答案文件(10.ans

0.6931466235

用户输出

0.6931466235

Special Judge 信息

Accepted | found '0.6931466', expected '0.6931466', error '0.0000000'

系统信息

Exited with return code 0