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How do nested loops execute in C?

How do nested loops execute in C? (Computer science one · Nested Loops) — "Recall that you can write loops within loops. The inner loop will execute fully for…

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Nested for loops in C
The inner loop executes fully for each iteration of the outer loop.
Code Sample 17.7 demonstrates nested for loops using i and j.
The loop limits are n = 10 and m = 20.
The inner loop runs for j = 0 through 19, totaling 20 iterations per outer-loop iteration.
The outer loop runs for i = 0 through 9, totaling 10 iterations.
The printf statement executes 10 × 20 = 200 times.
The output contains ordered pairs from (0, 0) through (9, 19).

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How do nested loops execute in C?

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Computer science one

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"Recall that you can write loops within loops. The inner loop will execute fully for each iteration of the outer loop. An example of two nested of loops in C can be found in Code Sample 17.7.\n\n1 int i, j;\n\n2 int n = 10;\n\n3 int m = 20;\n\n4 for(i=0; i<n; i++) {\n\n5 for(j=0; j<m; j++) {\n\n6 printf(\"(i, j) = (%d, %d)\n\n\", i, j);\n\n7 }\n\n8 }\n\nCode Sample 17.7.: Nested For Loops in C\n\nThe inner loop executes for j = 0, 1, 2, . . . , 19 < m = 20 for a total of 20 iterations. However, it executes 20 times for each iteration of the outer loop. Since the outer loop executes for i = 0, 1, 2, . . . , 9 < n = 10, the total number of times the printf() statement execute is 10 × 20 = 200. In this example, the sequence (0, 0), (0, 1), (0, 2), . . . , (0, 19), (1, 0), . . . , (9, 19) will be printed."

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