700+ câu trắc nghiệm Ngôn ngữ lập trình C có đáp án - Phần 13

What is output? #include #include int main() { int a = 5; switch(a) { default: a = 4; case 6: a--; case 5: a = a + 1; case 1: a = a - 1; } printf("%d \n", a); getch(); }

What is output? #include #include int main() { int x = 3; if (x == 2); x = 0; if (x == 3) x++; else x += 2; printf("x = %d", x); getch(); }

What is output? #include #include int main() { int check = 20, arr[] = {10, 20, 30}; switch (check) { case arr[0]: printf("A "); case arr[1]: printf("B"); case arr[2]: printf("C"); } getch(); }

What is output of code? void main() { if ((1 || 0) && (0 || 1)) { printf("ABC"); } else { printf("DEF"); } getch(); }

What is output of code? #include #include #include void main() { char str1[] = "vncoding"; char str2[] = "vncoding"; if (strcmp(str1, str2)) printf("Equal"); else printf("Unequal"); getch(); }

What is output of code? #include #include void main() { int i; i = 10; if(i == 20 || 30) printf("True"); else printf("False"); getch(); }

What is output of code? #include #include void main() { if(1,0) printf("True"); else printf("False"); getch(); }

What is output of code? #include #include void main() { int i, j, *ptr, *ptr1; i = 10; j = 10; ptr = &i; ptr1 = &j; if(ptr == ptr1) printf("True"); else printf("False"); getch(); }

What is output of code? #include #include void main() { int i; i = 2; DES: printf("%d", i); i = i + 2; if(i <= 20) goto DES;

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What is output of code? #include #include void main() { int i; i = 0; if(i = 15, 10, 5) printf("C/C++ %d", i); else printf("Java %d", i); getch(); }

What is output of code? #include #include void main() { int a = 80; if(a++ > 80) printf("C/C++ %d", a); else printf("Java %d", a); getch(); }

What is output of code? #include #include void main() { int a; a = 1; while(a <= 1) if(a%2) printf("%d ", a++); else printf("%d ", ++a); printf("%d ", a+10); getch(); }

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What is output ? #include #include #include #include void myfunc(char** param) { ++param; } void main() { char* string = (char*)malloc(64); strcpy(string, "hello_World"); myfunc(&string); myfunc(&string); printf("%s\n", string); getch(); }

What is output? void myfunc(char** param) { ++*param; } void main() { char* string = (char*)malloc(64); strcpy(string, "hello_World"); myfunc(&string); myfunc(&string); printf("%s\n", string); getch(); }

What is output? void main() { int ints[] = { 0, 1, 2, 3 }; int* i1 = ints + 1; int a = ++*i1; int b = a + *i1; printf("%d\n", b); getch(); }

What is output? void main() { int ints[] = { 0, 5, 10, 15 }; int* i2 = ints + 2; int a = *i2++; // a = *(i2++); printf("%d#%d\n", a, *i2); getch(); }