Cody

# Problem 2801. geometric progression

Solution 2161058

Submitted on 15 Mar 2020 by Asif Newaz
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### Test Suite

Test Status Code Input and Output
1   Pass
nterms = 10; term0 = randi(10) ratio = (-1)^randi(2)*randi(10) correctsequence = term0*ratio.^(0:nterms-1); for position = 1:nterms errorsequence = correctsequence; errorsequence(position) = errorsequence(position) + (-1)^randi(2)*randi(50); [errorposition, truesequence] = find_error(errorsequence); assert(errorposition == position && isequal(truesequence, correctsequence), 'failed test 1 at position %d', position); end

term0 = 10 ratio = 7 er = 10 70 490 3430 24010 168070 1176490 8235430 57648010 403536070 er = 10 70 490 3430 24010 168070 1176490 8235430 57648010 403536070 er = 10 70 490 3430 24010 168070 1176490 8235430 57648010 403536070 er = 10 70 490 3430 24010 168070 1176490 8235430 57648010 403536070 er = 10 70 490 3430 24010 168070 1176490 8235430 57648010 403536070 er = 10 70 490 3430 24010 168070 1176490 8235430 57648010 403536070 er = 10 70 490 3430 24010 168070 1176490 8235430 57648010 403536070 er = 10 70 490 3430 24010 168070 1176490 8235430 57648010 403536070 er = 10 70 490 3430 24010 168070 1176490 8235430 57648010 403536070 er = 10 70 490 3430 24010 168070 1176490 8235430 57648010 403536070

2   Pass
nterms = 15; term0 = randi(10) ratio = (-1)^randi(2)*randi(10) correctsequence = term0*ratio.^(0:nterms-1); for position = 1:nterms errorsequence = correctsequence; errorsequence(position) = errorsequence(position) + (-1)^randi(2)*randi(50); [errorposition, truesequence] = find_error(errorsequence); assert(errorposition == position && isequal(truesequence, correctsequence), 'failed test 2 at position %d', position); end

term0 = 10 ratio = 5 er = 1.0e+10 * 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0001 0.0004 0.0020 0.0098 0.0488 0.2441 1.2207 6.1035 er = 1.0e+10 * 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0001 0.0004 0.0020 0.0098 0.0488 0.2441 1.2207 6.1035 er = 1.0e+10 * 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0001 0.0004 0.0020 0.0098 0.0488 0.2441 1.2207 6.1035 er = 1.0e+10 * 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0001 0.0004 0.0020 0.0098 0.0488 0.2441 1.2207 6.1035 er = 1.0e+10 * 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0001 0.0004 0.0020 0.0098 0.0488 0.2441 1.2207 6.1035 er = 1.0e+10 * 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0001 0.0004 0.0020 0.0098 0.0488 0.2441 1.2207 6.1035 er = 1.0e+10 * 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0001 0.0004 0.0020 0.0098 0.0488 0.2441 1.2207 6.1035 er = 1.0e+10 * 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0001 0.0004 0.0020 0.0098 0.0488 0.2441 1.2207 6.1035 er = 1.0e+10 * 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0001 0.0004 0.0020 0.0098 0.0488 0.2441 1.2207 6.1035 er = 1.0e+10 * 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0001 0.0004 0.0020 0.0098 0.0488 0.2441 1.2207 6.1035 er = 1.0e+10 * 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0001 0.0004 0.0020 0.0098 0.0488 0.2441 1.2207 6.1035 er = 1.0e+10 * 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0001 0.0004 0.0020 0.0098 0.0488 0.2441 1.2207 6.1035 er = 1.0e+10 * 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0001 0.0004 0.0020 0.0098 0.0488 0.2441 1.2207 6.1035 er = 1.0e+10 * 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0001 0.0004 0.0020 0.0098 0.0488 0.2441 1.2207 6.1035 er = 1.0e+10 * 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0001 0.0004 0.0020 0.0098 0.0488 0.2441 1.2207 6.1035

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