The function writes to the file in txt. I need to sum but the vector is as char

Question

My teacher passed this code that writes to the txt file. Inserts random number. After executing this code he wants me to sum the values written in txt, but they were written in a char vector and for me to do the sum I need to convert them. And show that sum on the screen. Understand?

Text written in txt:

333;60;565;212;657;95;364;486;860;
68;859;649;573;475;631;389;698;467;
952;14;834;912;163;678;929;518;85;
151;123;413;76;435;948;405;576;312;
608;708;339;814;582;278;36;498;218;
788;234;728;300;368;151;444;339;767;
75;42;141;368;163;912;971;469;1;
760;665;136;614;938;460;320;118;473;
599;795;411;876;79;590;644;64;910;

Follows code:

 #include<stdio.h>
 #include<time.h>

void main(){
int i, j , x;
char vetor[50];
FILE *arq;

arq = fopen("dados.txt", "w");
srand(time(NULL));

    for(i = 0; i < 9; i++){
        for(j = 0; j < 9; j++){
            x = rand() % 1000 +1;
            fprintf(arq, "%d;", x);
        }
    fprintf(arq, "\n");
    }
fclose(arq);

//Faz a leitura:

arq = fopen("dados.txt", "r");

while(!feof(arq)){
    fscanf(arq, "%d;%d;d%;%d;%d;%d;%d;%d;%d;%d;",&vetor[0], &vetor[1], &vetor[2], &vetor[3], &vetor[4], &vetor[5], &vetor[6], &vetor[7], &vetor[8] );

    for(i = 0; i<4; i++){
        printf("[%d]=%d\t", i, vetor[i]);           
    }
    printf("\n");
}
fclose(arq);

}

Answer 1

First you have higher values than 255 so you can’t use a vector char its vector must be a int.

int vetor[50];

To make the sum, use a for within the while.

int line;
while(!feof(arq)){
    //...
    line = 0;
    for(i=0;x<8;i++){
        line += vetor[i]
    }
    printf("Soma da linha: %d\n", line)
}