func_code_string: #include <bits/stdc++.h>   using namespace std;   const int N = 1e5 + 1;   string s, t;   char c[N];   int cs[2][N], ct[2][N], q;   int main() {     scanf(  %s , c);     s = c;     scanf(  %s , c);     t = c;     int at = 0;     for (auto &i : s) {       at++;       if (i ==  C  || i ==  B ) {         i =  B ;         cs[1][at] = cs[1][at - 1] + 1;       } else {         cs[1][at] = cs[1][at - 1];         cs[0][at] = cs[0][at - 1] + 1;       }     }     at = 0;     for (auto &i : t) {       at++;       if (i ==  C  || i ==  B ) {         i =  B ;         ct[1][at] = ct[1][at - 1] + 1;       } else {         ct[1][at] = ct[1][at - 1];         ct[0][at] = ct[0][at - 1] + 1;       }     }     scanf( %d , &q);     for (int i = 0, a, b, c, d; i < q; i++) {       scanf( %d%d%d%d , &a, &b, &c, &d);       int difs = cs[1][b] - cs[1][a - 1];       int dift = ct[1][d] - ct[1][c - 1];       bool thereis = 0;       int need = dift - difs;       int trails = min(b - a + 1, cs[0][b]);       int trailt = min(d - c + 1, ct[0][d]);       if (need & 1) {         printf( 0 );         continue;       }       if (need < 0) {         printf( 0 );         continue;       }       if (!need) {         if (trails < trailt || (trails - trailt) % 3) {           printf( 0 );           continue;         }         printf( 1 );         continue;       }       if (need && trails > trailt) {         trails = trailt;         thereis = 1;       }       if ((trails - trailt) % 3 || trails < trailt) {         printf( 0 );         continue;       }       thereis |= difs;       if (!thereis && need) {         printf( 0 );         continue;       }       printf( 1 );     }   }   