#define CATCH_CONFIG_MAIN
#include <catch2/catch.hpp>

int sum_2d_array(int arr[][10], int rows, int cols);

TEST_CASE("Sum of 3x5 array with sequential numbers is correct", "[sum_2d_array]") {
    int arr[3][10] = {
        {1, 2, 3, 4, 5, 0, 0, 0, 0, 0},
        {6, 7, 8, 9, 10, 0, 0, 0, 0, 0},
        {11, 12, 13, 14, 15, 0, 0, 0, 0, 0}
    };
    int result = sum_2d_array(arr, 3, 5);
    REQUIRE(result == 120); // 1+2+3+4+5+6+7+8+9+10+11+12+13+14+15 = 120
}

TEST_CASE("Sum of 2x2 array with negative numbers", "[sum_2d_array]") {
    int arr[2][10] = {
        {-1, -2, 0, 0, 0, 0, 0, 0, 0, 0},
        {-3, 4, 0, 0, 0, 0, 0, 0, 0, 0}
    };
    int result = sum_2d_array(arr, 2, 2);
    REQUIRE(result == -2); // -1 + -2 + -3 + 4 = -2
}

TEST_CASE("Sum of 1x4 array with all zeros", "[sum_2d_array]") {
    int arr[1][10] = {
        {0, 0, 0, 0, 0, 0, 0, 0, 0, 0}
    };
    int result = sum_2d_array(arr, 1, 4);
    REQUIRE(result == 0);
}

TEST_CASE("Sum of 4x1 array with positive numbers", "[sum_2d_array]") {
    int arr[4][10] = {
        {5, 0, 0, 0, 0, 0, 0, 0, 0, 0},
        {10, 0, 0, 0, 0, 0, 0, 0, 0, 0},
        {15, 0, 0, 0, 0, 0, 0, 0, 0, 0},
        {20, 0, 0, 0, 0, 0, 0, 0, 0, 0}
    };
    int result = sum_2d_array(arr, 4, 1);
    REQUIRE(result == 50); // 5+10+15+20 = 50
}

test.cpp

Master the essential loop constructs in C, including while, for, and do-while loops, as well as control statements like break and continue. This course is designed for learners who already understand variables and conditionals, focusing on practical usage and concise explanations.

Explore the while loop in C, including its syntax, practical use cases, and related control statements.

Dive into the for loop in C, its structure, variations, and common use cases.

Discover how to use loops inside other loops to solve more complex problems.

Challenge: Nested For Loops in C

解答