Cody

# Problem 2800. arithmetic progression

Solution 1945335

Submitted on 22 Sep 2019 by Augusto Mazzei
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### Test Suite

Test Status Code Input and Output
1   Pass
nterms = 10; term0 = randi(10); increment = (-1)^randi(2)*randi(10); correctsequence = term0:increment:term0+(nterms-1)*increment; 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

seq = -35 -4 -10 -16 -22 -28 -34 -40 -46 -52 m = -6 seq = 2 -4 -10 -16 -22 -28 -34 -40 -46 -52 seq = 2 -9 -10 -16 -22 -28 -34 -40 -46 -52 m = -6 seq = 2 -4 -10 -16 -22 -28 -34 -40 -46 -52 seq = 2 -4 23 -16 -22 -28 -34 -40 -46 -52 m = -6 seq = 2 -4 -10 -16 -22 -28 -34 -40 -46 -52 seq = 2 -4 -10 -23 -22 -28 -34 -40 -46 -52 m = -6 seq = 2 -4 -10 -16 -22 -28 -34 -40 -46 -52 seq = 2 -4 -10 -16 -44 -28 -34 -40 -46 -52 m = -6 seq = 2 -4 -10 -16 -22 -28 -34 -40 -46 -52 seq = 2 -4 -10 -16 -22 -48 -34 -40 -46 -52 m = -6 seq = 2 -4 -10 -16 -22 -28 -34 -40 -46 -52 seq = 2 -4 -10 -16 -22 -28 -7 -40 -46 -52 m = -6 seq = 2 -4 -10 -16 -22 -28 -34 -40 -46 -52 seq = 2 -4 -10 -16 -22 -28 -34 -29 -46 -52 m = -6 seq = 2 -4 -10 -16 -22 -28 -34 -40 -46 -52 seq = 2 -4 -10 -16 -22 -28 -34 -40 -89 -52 m = -6 seq = 2 -4 -10 -16 -22 -28 -34 -40 -46 -52 seq = 2 -4 -10 -16 -22 -28 -34 -40 -46 -91 m = -6 seq = 2 -4 -10 -16 -22 -28 -34 -40 -46 -52

2   Pass
nterms = 201; term0 = randi(10); increment = (-1)^randi(2)*randi(10); correctsequence = term0:increment:term0+(nterms-1)*increment; for position = 1:10: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

seq = Columns 1 through 29 51 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 Columns 30 through 58 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 Columns 59 through 87 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 Columns 88 through 116 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 Columns 117 through 145 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 Columns 146 through 174 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 Columns 175 through 201 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 m = 1 seq = Columns 1 through 29 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 Columns 30 through 58 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 Columns 59 through 87 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 Columns 88 through 116 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 Columns 117 through 145 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 Columns 146 through 174 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 Columns 175 through 201 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 seq = Columns 1 through 29 7 8 9 10 11 12 13 14 15 16 29 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 Columns 30 through 58 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 Columns 59 through 87 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 Columns 88 through 116 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 Columns 117 through 145 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 Columns 146 through 174 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 Columns 175 through 201 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 m = 1 seq = Columns 1 through 29 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 Columns 30 through 58 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 Columns 59 through 87 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 Columns 88 through 116 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 Columns 117 through 145 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 Columns 146 through 174 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 Columns 175 through 201 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 seq = Columns 1 through 29 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 49 28 29 30 31 32 33 34 35 Columns 30 through 58 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 Columns 59 through 87 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 Columns 88 through 116 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 Columns 117 through 145 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 Columns 146 through 174 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 Columns 175 through 201 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 m = 1 seq = Columns 1 through 29 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 Columns 30 through 58 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 Columns 59 through 87 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 Columns 88 through 116 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 Columns 117 through 145 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 Columns 146 through 174 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 Columns 175 through 201 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 seq = Columns 1 through 29 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 Columns 30 through 58 36 4 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 Columns 59 through 87 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 Columns 88 through 116 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 Columns 117 through 145 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 Columns 146 through 174 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 Columns 175 through 201 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 m = 1 seq = Columns 1 through 29 7 8 9 10 11 12 13 14 ...