人工智能归结原理c语言代码
时间: 2023-10-22 18:10:47 浏览: 160
人工智能归结原理
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人工智能的归结原理是一种基于逻辑推理的推导算法,其核心思想是将问题表示为一组逻辑公式,然后通过逻辑推理来推导出问题的答案。以下是一个简单的归结原理的C语言代码示例:
```c
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#define MAX_CLAUSES 100
#define MAX_LITERALS 100
typedef struct {
int literals[MAX_LITERALS];
int num_literals;
} clause;
clause clauses[MAX_CLAUSES];
int num_clauses = 0;
int resolve(int c1, int c2, int p) {
int i, j, k;
int resolved = 0;
for (i = 0; i < clauses[c1].num_literals; i++) {
if (clauses[c1].literals[i] == p) {
for (j = 0; j < clauses[c2].num_literals; j++) {
if (clauses[c2].literals[j] == -p) {
clause new_clause;
for (k = 0; k < clauses[c1].num_literals; k++) {
if (k != i) {
new_clause.literals[new_clause.num_literals++] = clauses[c1].literals[k];
}
}
for (k = 0; k < clauses[c2].num_literals; k++) {
if (k != j) {
new_clause.literals[new_clause.num_literals++] = clauses[c2].literals[k];
}
}
clauses[num_clauses++] = new_clause;
resolved = 1;
}
}
}
}
return resolved;
}
int resolution(int p) {
int i, j;
int resolved = 0;
for (i = 0; i < num_clauses; i++) {
for (j = i + 1; j < num_clauses; j++) {
if (resolve(i, j, p)) {
resolved = 1;
}
}
}
return resolved;
}
int main() {
char input[100];
while (fgets(input, sizeof(input), stdin)) {
clause new_clause;
char *token = strtok(input, " ");
while (token) {
int literal = atoi(token);
new_clause.literals[new_clause.num_literals++] = literal;
token = strtok(NULL, " ");
}
clauses[num_clauses++] = new_clause;
}
int p;
printf("Enter a literal to resolve: ");
scanf("%d", &p);
if (resolution(p)) {
printf("Resolved!\n");
} else {
printf("Not resolved.\n");
}
return 0;
}
```
该代码实现了一个简单的归结原理算法,可以读入一组逻辑公式,然后通过输入一个字面量来进行归结。如果能够通过归结得到空子句,则说明原始公式集合不可满足。
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