b:[["$","script",null,{"type":"application/ld+json","dangerouslySetInnerHTML":{"__html":"{\"@context\":\"https://schema.org\",\"@type\":\"Quiz\",\"name\":\"计算浮点数相除的余\",\"description\":\"输入双精度 a、b，求满足 a = k*b + r 且 0≤r\n#include \n#include \nint main() {\n double a, b;\n std::cin >> a >> b;\n double r = fmod(a, b);\n if (r < 0) r += b;\n std::cout << std::fixed << std::setprecision(4) << r << std::endl;\n return 0;\n}","cppCodeAiGenerate":"","createdBy":703,"createdTime":"2025-09-01 11:21:52","creatorName":"","delFlag":0,"description":"输入双精度 a、b，求满足 a = k*b + r 且 0≤r73.263 0.9973 \n0.4601 \n","gid":null,"hideInNext":0,"hint":"","id":11585,"input":"两个双精度浮点数 a b \n","ioReadFileName":"","ioScore":100,"ioWriteFileName":"","isFileIo":0,"isGroup":0,"isRemote":0,"isRemoveEndBlank":1,"isUploadCase":0,"judgeCaseMode":"default","judgeExtraFile":"","judgeMode":"default","memoryLimit":512,"modifiedUser":"","openCaseResult":1,"output":"余数，保留 4 位小数 \n","problemBankId":null,"problemId":"","problemType":0,"pythonCode":"a, b = map(float, input().split())\nr = a % b\nprint(f\"{r:.4f}\")","revision":null,"source":"","spjCode":"","spjLanguage":"","stackLimit":128,"teamId":null,"tenantId":-1,"timeLimit":1000,"title":"计算浮点数相除的余","type":1,"updatedBy":703,"updatedTime":"2026-01-06 19:40:54","userExtraFile":"","uuid":"8f3b41fb-a3c0-48f2-b7c0-f63eceb0f189"},"specialId":null,"specialTitle":"","statistics":{"acceptAmt":0,"acceptUserAmt":0,"categoryName":"","collectAmt":0,"commentAmt":0,"commitAmt":0,"commitUserAmt":0,"createdBy":0,"createdTime":"2025-09-01 14:16:30","creatorName":"","dataId":11585,"dataType":2,"delFlag":0,"id":3244,"likeAmt":0,"updatedBy":0,"updatedTime":"2025-09-01 14:16:30","viewAmt":0},"tags":[{"categoryId":144,"categoryName":"","createdBy":703,"createdTime":"2025-06-13 14:50:44","creatorName":"","delFlag":0,"id":945,"isKnowledgeTag":0,"name":"C++","revision":null,"subjectAmt":0,"tagGroupId":1,"tenantId":-1,"type":2,"updatedBy":703,"updatedTime":"2025-06-13 14:50:44"},{"categoryId":154,"categoryName":"","createdBy":703,"createdTime":"2025-08-08 23:13:06","creatorName":"","delFlag":0,"id":1071,"isKnowledgeTag":0,"name":"信息学奥赛一本通启蒙","revision":null,"subjectAmt":0,"tagGroupId":7,"tenantId":-1,"type":2,"updatedBy":703,"updatedTime":"2026-01-03 09:33:30"}]}}]]

题库

题库

11585.计算浮点数相除的余

题目描述

输入格式

输出格式

示例 1

输入:

输出:

测试用例