Вложенный цикл для доступа к индексам записей. ⇐ C++

[Anonymous]

I have a text file that has n records and each record consists of 7 values. I also have 3D matrix where each item in this matrix is one of those records. I want to iterate over this matrix and get for each item its record index from the text file.

Here is a simple example of what the data looks like:

float res[4][3][4] = { {{1.1, 2.2, 3.3, 4.4}, {4.4, 5.5, 6.6, 7.7}, {7.7, 8.8, 9.9, 0.0}}, {{4.4, 5.5, 6.6, 7.7}, {1.1, 2.2, 3.3, 4.4}, {7.7, 8.8, 9.9, 0.0}}, {{7.7, 8.8, 9.9, 0.0}, {1.1, 2.2, 3.3, 4.4}, {4.4, 5.5, 6.6, 7.7}}, {{1.1, 2.2, 3.3, 4.4},{5.5, 1.1, 4.4, 6.6}, {4.4, 5.5, 6.6, 7.7}} }; float records[4][4] = { {7.7, 8.8, 9.9, 0.0}, {1.1, 2.2, 3.3, 4.4}, {4.4, 5.5, 6.6, 7.7}, {5.5, 1.1, 4.4, 6.6} }; I want the output to be:

results[4][3]= { {2, 3, 1}, {3, 2, 1}, {1, 2, 3}, {2, 4, 3} } I implemented this code:

int *rowIndices = (int *)malloc(4 * sizeof(int)); for (int i = 0; i < 4; i++) { int rowIndex = -1; // Initialize to -1 if no matching row is found printf("Results for record %d:\n", i + 1); for (int j = 0; j < 3; j++) { int match = 1; // Assume a match printf("Residue %d: ", j + 1); for (int k = 0; k < 4; k++) { printf("res %f: ", res[j][k]); printf("record %f: ", records[j][k]); if (res[j][k] != records[j][k]) { match = 0; // Not a match break; } } if (match) { printf("%d ", j); rowIndices = j; } printf("\n"); } printf("Row index for res[%d]: %d\n", i, rowIndices); } Inside the third loop when it compares the first value of res and first value record and they don't match it automatically goes for the next res and next record. I want it to compare each res with all records and get its index because it must be there.


Источник: https://stackoverflow.com/questions/781 ... ds-indices