Codeforces Round 1049 (Div. 2)

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ContestId
Name
Phase
Frozen
Duration (Seconds)
Relative Time
Start Time
2140 Codeforces Round 1049 (Div. 2) FINISHED False 7200 18977123 Sept. 9, 2025, 2:35 p.m.

Problems

Solved
Index
Name
Type
Tags
Community Tag
Rating
( 22011 ) B Another Divisibility Problem PROGRAMMING constructive algorithms math number theory

Alice and Bob are playing a game in which Alice has given Bob a positive integer (x<10^8). To win the game, Bob has to find another positive integer (y<10^9) such that (x \operatorname{\#} y) is divisible by (x + y). Here (x\operatorname{\#}y) denotes the integer formed by concatenating the integers (x) and (y) in that order. For example, if (x = 835), (y = 47), then (x \operatorname{\#} y = 83\,547). However, since Bob is dumb, he is unable to find such an integer. Please help him. It can be shown that such an integer always exists. Each test contains multiple test cases. The first line contains the number of test cases (t) ((1 \le t \le 10^4)). The description of the test cases follows. The only line of each test case contains a single integer (x) ((1 \le x < 10^8)) — the integer that Alice has given to Bob. For each test case, print a single integer (y) ((1 \le y < 10^9)) so that Bob can win the game. If there are multiple answers, print any one of them. For the first test case, (x = 8), we can choose (y = 1), and we have (x \operatorname{\#} y = 81), which is divisible by (x + y = 9). For the second test case, (x = 42), we can choose (y = 12), and we have (x \operatorname{\#} y = 4212), which is divisible by (x + y = 54).

Tutorials

Codeforces Round 1049 (Div. 2) Editorial

Submissions

Submission Id
Author(s)
Index
Submitted
Verdict
Language
Test Set
Tests Passed
Time taken (ms)
Memory Consumed (bytes)
Tags
Rating
337857800 og.kostya B Sept. 9, 2025, 5:55 p.m. OK C# 13 TESTS 5 93 204800
337866774 mahmudur9 B Sept. 9, 2025, 7:21 p.m. OK C# 13 TESTS 5 109 614400
337850566 Hyl_Kibou B Sept. 9, 2025, 5:04 p.m. OK C++17 (GCC 7-32) TESTS 5 30 0
337899640 mohit.student.eee19 B Sept. 10, 2025, 5:07 a.m. OK C++17 (GCC 7-32) TESTS 5 31 0
337886704 murad501 B Sept. 10, 2025, 1:46 a.m. OK C++17 (GCC 7-32) TESTS 5 31 0
337857995 amoghjain B Sept. 9, 2025, 5:57 p.m. OK C++17 (GCC 7-32) TESTS 5 31 0
337903677 Fananan B Sept. 10, 2025, 5:56 a.m. OK C++17 (GCC 7-32) TESTS 5 46 0
337903414 argpcoding B Sept. 10, 2025, 5:53 a.m. OK C++17 (GCC 7-32) TESTS 5 46 0
337903314 XDG B Sept. 10, 2025, 5:52 a.m. OK C++17 (GCC 7-32) TESTS 5 46 0
337901592 Ansh_Agarwal B Sept. 10, 2025, 5:32 a.m. OK C++17 (GCC 7-32) TESTS 5 46 0
337901406 Rashwood B Sept. 10, 2025, 5:30 a.m. OK C++17 (GCC 7-32) TESTS 5 46 0
337900663 AdSaw05_ B Sept. 10, 2025, 5:20 a.m. OK C++17 (GCC 7-32) TESTS 5 46 0
337883041 CYLNT-RAIN B Sept. 10, 2025, 12:25 a.m. OK C++20 (GCC 13-64) TESTS 5 31 0
337873827 yaraalhussany B Sept. 9, 2025, 9:01 p.m. OK C++20 (GCC 13-64) TESTS 5 31 0
337859418 Risk_Rich B Sept. 9, 2025, 6:09 p.m. OK C++20 (GCC 13-64) TESTS 5 31 0
337848019 lemac006 B Sept. 9, 2025, 4:34 p.m. OK C++20 (GCC 13-64) TESTS 5 31 0
337837969 mohit_13_k B Sept. 9, 2025, 4:14 p.m. OK C++20 (GCC 13-64) TESTS 5 31 0
337903821 TANIM67 B Sept. 10, 2025, 5:57 a.m. OK C++20 (GCC 13-64) TESTS 5 46 0
337903428 Biplob-Dash B Sept. 10, 2025, 5:53 a.m. OK C++20 (GCC 13-64) TESTS 5 46 0
337903223 spoiLerr B Sept. 10, 2025, 5:51 a.m. OK C++20 (GCC 13-64) TESTS 5 46 0
337902480 tuko_tanzwoo B Sept. 10, 2025, 5:43 a.m. OK C++20 (GCC 13-64) TESTS 5 46 0
337901290 Muschuang123 B Sept. 10, 2025, 5:28 a.m. OK C++20 (GCC 13-64) TESTS 5 46 0
337885510 SRLN_JYLQY B Sept. 10, 2025, 1:23 a.m. OK C++23 (GCC 14-64, msys2) TESTS 5 30 0
337895641 Incredible0306 B Sept. 10, 2025, 4:12 a.m. OK C++23 (GCC 14-64, msys2) TESTS 5 31 0
337889879 GentleYue B Sept. 10, 2025, 2:42 a.m. OK C++23 (GCC 14-64, msys2) TESTS 5 31 0
337889290 choyon_92 B Sept. 10, 2025, 2:32 a.m. OK C++23 (GCC 14-64, msys2) TESTS 5 31 0
337884165 Ahmed_Rabe33333333 B Sept. 10, 2025, 12:52 a.m. OK C++23 (GCC 14-64, msys2) TESTS 5 31 0
337868115 SigmaXDeltaQ B Sept. 9, 2025, 7:37 p.m. OK C++23 (GCC 14-64, msys2) TESTS 5 31 0
337864150 ZUZUU B Sept. 9, 2025, 6:53 p.m. OK C++23 (GCC 14-64, msys2) TESTS 5 31 0
337863626 NitronBeam B Sept. 9, 2025, 6:48 p.m. OK C++23 (GCC 14-64, msys2) TESTS 5 31 0
337862200 ZUZUUU B Sept. 9, 2025, 6:33 p.m. OK C++23 (GCC 14-64, msys2) TESTS 5 31 0
337860488 raj_mistry01 B Sept. 9, 2025, 6:18 p.m. OK C++23 (GCC 14-64, msys2) TESTS 5 31 0
337896638 karma25 B Sept. 10, 2025, 4:25 a.m. OK GNU C11 TESTS 5 77 0
337864097 Mahir_Uddin B Sept. 9, 2025, 6:53 p.m. OK GNU C11 TESTS 5 77 0
337851657 mdgaziurrahmannoor B Sept. 9, 2025, 5:10 p.m. OK GNU C11 TESTS 5 77 0
337840035 Akshith_28 B Sept. 9, 2025, 4:18 p.m. OK GNU C11 TESTS 5 77 102400
337839040 rdrthmr B Sept. 9, 2025, 4:16 p.m. OK GNU C11 TESTS 5 77 102400
337843330 KillerKowser B Sept. 9, 2025, 4:25 p.m. OK GNU C11 TESTS 5 93 0
337843043 tejazzz B Sept. 9, 2025, 4:25 p.m. OK GNU C11 TESTS 5 93 0
337861274 Kaiseer B Sept. 9, 2025, 6:24 p.m. OK GNU C11 TESTS 5 93 102400
337903275 KL2400031478 B Sept. 10, 2025, 5:51 a.m. OK GNU C11 TESTS 5 108 102400
337841721 SIVASRINU_BANDILA021 B Sept. 9, 2025, 4:22 p.m. OK GNU C11 TESTS 5 109 0
337901172 Ashish_yadava B Sept. 10, 2025, 5:27 a.m. OK Java 21 TESTS 5 202 819200
337857328 akshat.codes B Sept. 9, 2025, 5:51 p.m. OK Java 21 TESTS 5 202 1126400
337884290 mrkeshav B Sept. 10, 2025, 12:56 a.m. OK Java 21 TESTS 5 217 716800
337891690 ccj123 B Sept. 10, 2025, 3:12 a.m. OK Java 21 TESTS 5 218 409600
337897464 Sadhik099 B Sept. 10, 2025, 4:36 a.m. OK Java 21 TESTS 5 218 819200
337879015 sagbis B Sept. 9, 2025, 10:56 p.m. OK Java 21 TESTS 5 218 1945600
337870583 Java_Coder B Sept. 9, 2025, 8:08 p.m. OK Java 21 TESTS 5 233 0
337854703 Vamhaze B Sept. 9, 2025, 5:31 p.m. OK Java 21 TESTS 5 233 409600
337850434 rizzzii B Sept. 9, 2025, 5:03 p.m. OK Java 21 TESTS 5 234 307200
337847908 sanasindwani B Sept. 9, 2025, 4:34 p.m. OK Java 21 TESTS 5 234 512000
337874024 Ashu2030 B Sept. 9, 2025, 9:05 p.m. OK Java 8 TESTS 5 140 0
337870427 abhayrajnegi0416 B Sept. 9, 2025, 8:06 p.m. OK Java 8 TESTS 5 140 0
337899461 suntansoker B Sept. 10, 2025, 5:04 a.m. OK Java 8 TESTS 5 171 0
337856109 gowrishankarigs15 B Sept. 9, 2025, 5:42 p.m. OK Java 8 TESTS 5 186 0
337887965 kevin_0911 B Sept. 10, 2025, 2:08 a.m. OK Java 8 TESTS 5 202 0
337839124 Parth63 B Sept. 9, 2025, 4:16 p.m. OK Java 8 TESTS 5 203 0
337845160 raghunandandev B Sept. 9, 2025, 4:29 p.m. OK Java 8 TESTS 5 218 0
337837781 Gulshan2908 B Sept. 9, 2025, 4:14 p.m. OK Java 8 TESTS 5 233 0
337851676 Vishalll_ B Sept. 9, 2025, 5:10 p.m. OK Java 8 TESTS 5 234 0
337842776 bt22cse036 B Sept. 9, 2025, 4:24 p.m. OK Java 8 TESTS 5 249 0
337893401 bektasKhalel B Sept. 10, 2025, 3:39 a.m. OK PyPy 3 TESTS 5 218 4710400
337879520 kekwman B Sept. 9, 2025, 11:05 p.m. OK PyPy 3 TESTS 5 218 4710400
337844418 ss250404909 B Sept. 9, 2025, 4:28 p.m. OK PyPy 3 TESTS 5 233 4300800
337862222 CodeWizParth B Sept. 9, 2025, 6:34 p.m. OK PyPy 3 TESTS 5 233 4710400
337882318 akebono03 B Sept. 10, 2025, 12:11 a.m. OK PyPy 3 TESTS 5 249 4710400
337871974 ronakkagarwall B Sept. 9, 2025, 8:29 p.m. OK PyPy 3-64 TESTS 5 77 2867200
337839081 practiceDaily1 B Sept. 9, 2025, 4:16 p.m. OK PyPy 3-64 TESTS 5 77 3276800
337851624 denilb B Sept. 9, 2025, 5:10 p.m. OK PyPy 3-64 TESTS 5 93 2150400
337895134 gardengnome B Sept. 10, 2025, 4:04 a.m. OK PyPy 3-64 TESTS 5 93 2457600
337872575 ronakkagarwall B Sept. 9, 2025, 8:39 p.m. OK PyPy 3-64 TESTS 5 93 2764800
337870299 ToniPortocolom B Sept. 9, 2025, 8:04 p.m. OK PyPy 3-64 TESTS 5 93 2764800
337874113 RahulHarpal B Sept. 9, 2025, 9:07 p.m. OK PyPy 3-64 TESTS 5 93 2867200
337843926 soul01 B Sept. 9, 2025, 4:27 p.m. OK PyPy 3-64 TESTS 5 93 2867200
337842200 Rudra_Dudhat B Sept. 9, 2025, 4:23 p.m. OK PyPy 3-64 TESTS 5 93 2867200
337885240 huy_pr B Sept. 10, 2025, 1:19 a.m. OK PyPy 3-64 TESTS 5 93 2969600
337891744 biltharesatyendra B Sept. 10, 2025, 3:13 a.m. OK Python 2 TESTS 5 77 0
337879454 MDelPiero B Sept. 9, 2025, 11:04 p.m. OK Python 3 TESTS 5 62 1536000
337852574 lingxiao00294 B Sept. 9, 2025, 5:16 p.m. OK Python 3 TESTS 5 77 204800
337859319 arshiya19 B Sept. 9, 2025, 6:08 p.m. OK Python 3 TESTS 5 77 1638400
337848227 kauz7 B Sept. 9, 2025, 4:34 p.m. OK Python 3 TESTS 5 78 204800
337855294 hasangiyosov603 B Sept. 9, 2025, 5:35 p.m. OK Python 3 TESTS 5 92 0
337901233 Karan.K B Sept. 10, 2025, 5:28 a.m. OK Python 3 TESTS 5 93 0
337893300 amethhac B Sept. 10, 2025, 3:38 a.m. OK Python 3 TESTS 5 93 0
337892853 sizihan B Sept. 10, 2025, 3:30 a.m. OK Python 3 TESTS 5 93 0
337869194 Ramine001 B Sept. 9, 2025, 7:51 p.m. OK Python 3 TESTS 5 93 0
337868568 Ramine001 B Sept. 9, 2025, 7:43 p.m. OK Python 3 TESTS 5 93 0
337859151 SnowballSH B Sept. 9, 2025, 6:06 p.m. OK Ruby 3 TESTS 5 311 1126400
337881719 Ckiddo B Sept. 9, 2025, 11:59 p.m. OK Rust 2021 TESTS 5 46 0
337877350 lyteabovenyte B Sept. 9, 2025, 10:23 p.m. OK Rust 2021 TESTS 5 62 0
337876457 lyteabovenyte B Sept. 9, 2025, 10 p.m. OK Rust 2021 TESTS 5 62 0
337876747 lyteabovenyte B Sept. 9, 2025, 10:08 p.m. OK Rust 2021 TESTS 5 77 0
337847291 vmhung B Sept. 9, 2025, 4:33 p.m. OK Rust 2024 TESTS 5 46 0
337894038 silicalet B Sept. 10, 2025, 3:48 a.m. OK Rust 2024 TESTS 5 62 0

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