probably assertion fail이 뜨네요 찾아보니 realloc에서 뜹니다.
비쥬얼스튜디오에서는 문제없이 돌아가는데 왜 이런거죠
~~~ c++
#include
#include
#include

#define FRANCE 1
#define ENGLAND 2

typedef struct _gui{
short id;
short contry;
struct _gui** sub;
bool revolt;
int subcnt;

_gui(short _id){
    id = _id;
    revolt = false;
    sub = (struct _gui**)malloc(sizeof(struct _gui*)*1);
    if(id==1) contry=FRANCE;
    if(id==2) contry=ENGLAND;
    subcnt=0;
}


void setSub(struct _gui* _sub){     
    sub[0] = _sub;
    sub[0]->contry = contry;
    realloc(sub, sizeof(struct _gui*) * (++subcnt));
}


void ChangeContry(int _contry){
    contry =  _contry;
    if(subcnt > 0 ){
        for(int i=0; i<subcnt; i++){
            if(!(sub[i]->revolt)){
                sub[i]->ChangeContry(contry);
            }else if(sub[i]->revolt){
                sub[i]->ChangeContry(contry == FRANCE ? ENGLAND : FRANCE);
            }
        }
    }
}


void Uprising(){
    if(revolt){
        revolt = false;
    }else{
        revolt = true;
    }

    ChangeContry(contry == FRANCE ? ENGLAND : FRANCE);
}

}gui;

int main()
{
int input;
char A[50001][6];
gui* G[50001];
int Gnum, QTnum;
int G1, G2;
char QT;
int cnt=0;

scanf("%d", &input);

for(int i=0; i<input; i++){
    cnt=0;
    scanf("%d %d", &Gnum, &QTnum);

    for(int j=1; j<=Gnum; j++){
        G[j] = new gui(j);
    }

    for(int j=0; j<Gnum-2; j++){
        scanf("%d %d%*c",  &G1, &G2);
        G[G1]->setSub(G[G2]);
    }

    for(int j=0; j<QTnum; j++){
        scanf("%c ", &QT);
        if(QT=='Q'){
            scanf("%d %d%*c", &G1, &G2);

            if(G[G1]->contry == G[G2]->contry)  strcpy(A[cnt++], "Ally");
            else strcpy(A[cnt++], "Enemy");
        }else if(QT=='T'){
            scanf("%d%*c", &G1);
            G[G1]->Uprising();
        }

    }
    for(int k=0; k<cnt; k++){
        printf("%s\n", A[k]);
    }
}



for(int j=1; j<= Gnum; j++){
    delete G[j];
}

return 0;

}
~~~