Hello everyone, I’m coding my first go project and I don’t undersant my code errors
Enter the number of rows the first matrix: 2
Enter the number of columns the first matrix: 2
Enter the number of rows the second matrix: 2
Enter the number of columns the second matrix : 2
Enter the first matrix elements:
1 2 3 4
Enter the second matrix elements:
1 2 3 4
panic: runtime error: index out of range [2] with length 2
goroutine 18 [running]:
main.cas(0xc0000763f0, 0x2, 0x2, 0xc00008a090, 0x2, 0x2, 0x2, 0x2)
C:/Users/sabti/Documents/ProjetGo/code1.go:16 +0x148
created by main.results
C:/Users/sabti/Documents/ProjetGo/code1.go:58 +0x45d
panic: runtime error: index out of range [2] with length 2
goroutine 20 [running]:
main.cas(0xc0000763f0, 0x2, 0x2, 0xc00008a090, 0x2, 0x2, 0x2, 0x2)
C:/Users/sabti/Documents/ProjetGo/code1.go:16 +0x148
created by main.results
C:/Users/sabti/Documents/ProjetGo/code1.go:58 +0x45d
panic: runtime error: index out of range [2] with length 2
goroutine 19 [running]:
main.cas(0xc0000763f0, 0x2, 0x2, 0xc00008a090, 0x2, 0x2, 0x2, 0x2)
C:/Users/sabti/Documents/ProjetGo/code1.go:16 +0x148
created by main.results
C:/Users/sabti/Documents/ProjetGo/code1.go:58 +0x45d
exit status 2
Here is my code
package main
import (
"fmt"
)
var matrixA [][]int
var matrixB [][]int
var result [][]int
var numLigne, numColone int
var i, j, k, nbLine1, nbColumn1, nbLine2, nbColumn2, total, nbLigeR, nbColumnR int
func cas(matrix1 [][]int, matrix2 [][]int, numLine int, numColumn int) {
for i = 0; i < nbColumn1; i++ {
for j = 0; j < nbLine2; j++ {
total = total + matrix1[numLine][i]*matrix2[j][numColumn]
}
}
result[numLine][numColumn] = total
}
func results() {
fmt.Print("Enter the number of rows the first matrix: ")
fmt.Scanln(&nbLine1)
fmt.Print("Enter the number of columns the first matrix: ")
fmt.Scanln(&nbColumn1)
fmt.Print("Enter the number of rows the second matrix: ")
fmt.Scanln(&nbLine2)
fmt.Print("Enter the number of columns the second matrix : ")
fmt.Scanln(&nbColumn2)
if nbColumn1 != nbLine2 {
fmt.Println("Error: The matrix cannot be multiplied")
} else {
matrixA = make([][]int, nbLine1)
fmt.Println("Enter the first matrix elements: ")
for i = 0; i < nbLine1; i++ {
matrixA[i] = make([]int, nbColumn1)
for j = 0; j < nbColumn1; j++ {
fmt.Scanln(&matrixA[i][j])
}
}
matrixB = make([][]int, nbLine2)
fmt.Println("Enter the second matrix elements: ")
for i = 0; i < nbLine2; i++ {
matrixB[i] = make([]int, nbColumn2)
for j = 0; j < nbColumn2; j++ {
fmt.Scanln(&matrixB[i][j])
}
}
}
for i = 0; i <= 2; i++ {
for j = 0; j <= 2; j++ {
go cas(matrixA, matrixB, nbColumn1, nbLine2)
}
}
for i = 0; i < 2; i++ {
for j = 0; j < 2; j++ {
fmt.Print(result[i][j], "\t")
}
}
}
func main() {
results()
}
