Compilare: user.cpp: In function ‘int main()’: user.cpp:36:25: warning: iteration 15u invokes undefined behavior [-Waggressive-loop-optimizations] s = ((s + v[n][i]) % MOD); ^ user.cpp:35:5: note: containing loop for(i = 0 ; i < 26 ; i++) ^ user.cpp:31:24: warning: iteration 15u invokes undefined behavior [-Waggressive-loop-optimizations] v[i][j] = s; ^ user.cpp:26:9: note: containing loop for(j = 0 ; j < 26 ; j++) { ^ user.cpp:29:26: warning: iteration 15u invokes undefined behavior [-Waggressive-loop-optimizations] if(a[k][j] == 0) ^ user.cpp:28:13: note: containing loop for(k = 0 ; k < 26 ; k++) ^ user.cpp:24:42: warning: iteration 15u invokes undefined behavior [-Waggressive-loop-optimizations] for(i = 0 ; i < 26 ; i++) v[1][i] = 1; ^ user.cpp:24:5: note: containing loop for(i = 0 ; i < 26 ; i++) v[1][i] = 1; ^