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

int main(){
	int x, y, i, j;
	srand(time(NULL));
	printf("Digite o tamanho do vetor\n");
	scanf("%d %d", &x, &y);
	int vet[x][y], somaLinha[x], somaColuna[y], somaDiagonal = 0;

	for(i = 0; i < x; i++){
		somaLinha[i] = 0;
		somaColuna[i] = 0;
		for (j = 0; j < y; j++)
			vet[i][j] = rand() % 100;
	}
	printf("Soma das linhas\nMatriz:\n");
	for(i = 0; i < x; i++){
		for (j = 0; j < y; j++){
			printf(" %d ", vet[i][j]);
			somaLinha[i] = vet[i][j] + somaLinha[i];
		}
		printf("   =   %d", somaLinha[i]);
		printf("\n");
	}
	printf("\n\nSoma das colunas\nMatriz:\n");
	for(i = 0; i < x; i++){
		for (j = 0; j < y; j++){
			printf(" %d ", vet[i][j]);
			somaColuna[j] = somaColuna[j] + vet[i][j];
		}
		printf("\n");
	}

	printf("\n");

	for (j = 0; j < 3; j++){
		printf(" %d ", somaColuna[j]);
	}
	int aux = 0;
	if (x == y){
		for (i = 0; i < x; i++){
			for (j = 0; j < y; j++){
				if (aux == 0)
					somaDiagonal += vet[i][j];

				aux++;
			}
			if (aux % (i + x) == 0)
					somaDiagonal += vet[i][j];
			//somaDiagonal += vet[i][aux];
		}
	}else{
		printf("Nao existe diagonal de funcao que nao seja de linhas e colunas iguais");
	}

	printf("\nSoma da diagonal principal: %d", somaDiagonal -1);
	return 0;

}